v

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friendv

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friendvv

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friendv

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friendv

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friendv

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friendvv

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friendvvv

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friendvvv

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friendvvv

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

My friend is Truc.

She lives in Thai binh.

Her home is big and beautiful.

She live with her parents and her grandparents.

She love her hometown because in her home town, she has a lot of best friend

a

easy

a) Que tính màu đỏ song song với que tính màu cam và màu tím.

    Que tính màu xanh lá cây song song với que tính màu nâu và mài vàng.

    Que tính màu xanh dương song song với các que tính màu đen và màu hồng.

b) Trong hình trên có 6 hình thoi: Hình (1,2), hình (2,3), hình (3,4), hình (4,5), hình (5,6), hình (6,1).    

a) Với a = 871 và b = 829 thì 32 700 − (a + b) = 32 700 − (871 + 829)

                                                                         = 32 700 − 1 700

                                                                         = 31 000

b) Với m = 2 071, n = 5 929, p = 4 thì (m + n) × p = (2 071 + 5 929) × 4

                                                                               = 8 000 × 4

                                                                               = 32 000.

a) Với a = 871 và b = 829 thì 32 700 − (a + b) = 32 700 − (871 + 829)

                                                                         = 32 700 − 1 700

                                                                         = 31 000

b) Với m = 2 071, n = 5 929, p = 4 thì (m + n) × p = (2 071 + 5 929) × 4

                                                                               = 8 000 × 4

                                                                               = 32 000.

a) Với a = 871 và b = 829 thì 32 700 − (a + b) = 32 700 − (871 + 829)

                                                                         = 32 700 − 1 700

                                                                         = 31 000

b) Với m = 2 071, n = 5 929, p = 4 thì (m + n) × p = (2 071 + 5 929) × 4

                                                                               = 8 000 × 4

                                                                               = 32 000.

a) 248 943 294 + 60 148 320

b) 34 506 728 − 8 243 809

 

c) 23 729 × 2

 

d) 17 423 : 3

 

3 phút 20 giây = 200 giây

1 dm2 54 cm2 = 154 cm2 > 145 cm2

105 dm2 < 1 m2 50 dm2 = 150 dm2

1 thế kỉ = 100 năm < 1 000 năm.

a) Chữ số hàng chục nghìn của số trên là chữ số 5, có giá trị là 50 000.

b) Do chữ số hàng chục nghìn của số trên là 5 nên khi làm tròn số đó đến hàng trăm nghìn, ta được số 1 100 000 (làm tròn lên).