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x+600=700+300
x+600=1000
x=1000-600
x=400
100+100+200+200+300+300+400+400+500+500+600+600+700+700+800 = 6400
a) 300 x 3 = ? Nhẩm: 3 trăm x 3 = 9 trăm 300 x 3 = 900 | 400 x 2 = ? Nhẩm: 4 trăm x 2 = 8 trăm 400 x 2 = 800 |
200 x 4 = ? Nhẩm: 2 trăm x 4 = 8 trăm 200 x 4 = 800 | 500 x 2 = ? Nhẩm: 5 trăm x 2 = 1 nghìn 500 x 2 = 1000 |
b) 800 : 4 = ? Nhẩm: 8 trăm : 4 = 2 trăm 800 : 4 = 200 | 700 : 7 = ? Nhẩm: 7 trăm : 7 = 1 trăm 700 : 7 = 100 |
600 : 3 = ? Nhẩm: 6 trăm : 3 = 2 trăm 600 : 3 = 200 | 400 : 2 = ? Nhẩm: 4 trăm : 2 = 2 trăm 400 : 2 = 200 |
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ko đăng linh tinh những câu hỏi ko liên quan đến :
toán ,
tiếng việt ,
tiếng anh
hoặc có thể là đố vui cũng có thể chấp nhận
lần sau rút kinh nghiệm ko đăng linh tinh bạn nhé !
x+600=700
x=700-600
x=100
x + 600 = 700
x = 700 - 600
x = 100
ai k mik mik k lai