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1 tháng 9 2017

Phương pháp giải:

 Tóm tắt :

Tự kiểm tra trang 50 | Vở bài tập Toán lớp 2

Muốn tìm lời giải ta lấy khối lượng đường bán được trong lần đầu cộng với 13kg.

Lời giải chi tiết:

Lần sau cửa hàng đó bán được số ki-lô-gam đường là:

    28 + 13 = 41 (kg)

Đáp số: 41 kg.

25 tháng 3 2017

Buổi chiều cửa hàng bán được số ki-lô-gam đường là:

  78 + 13 = 91 (kg)

    Đáp số: 91kg đường

10 tháng 2 2019

1 tấn = 1000 kg

Ngày thứ hai bán được : 300 x 2 = 600 (kg)

Hai ngày đầu bán được : 300 + 600 = 900 (kg)

Ngày thứ ba bán được : 1000 - 900 = 100 (kg)

Đáp số: 100kg đường.

10 tháng 11 2017

1 tấn = 1000 kg

Ngày thứ hai bán được : 300 x 2 = 600 (kg)

Hai ngày đầu bán được : 300 + 600 = 900 (kg)

Ngày thứ ba bán được : 1000 - 900 = 100 (kg)

Đáp số: 100kg đường.

22 tháng 12 2017

Phương pháp giải:

Tóm tắt

 

Bài 52: 52 - 28 | Vở bài tập Toán lớp 2

Muốn tìm lời giải ta lấy số ki-lô-gam đường bán được ở buổi sáng trừ đi 28kg.

Lời giải chi tiết:

Buổi chiều cửa hàng đó bán được số ki-lô-gam đường là:

    72 – 28 = 44 (kg)

Đáp số: 44 kg.

21 tháng 10 2021

helo mô tô

21 tháng 10 2021

                                                       bài giải

                                    1 tấn =1000 kg

:    300 x 2 = 600 [ kg]

    1000 - [300 + 600] =100 [ kg]

            đáp số :100 kg đường

12 tháng 7 2018

Ta có :1 tấn=1000kg

Ngày thứ 2 bán đc số đường là :300x2=600(kg)

=>Ngày thứ 3 bán đc số đường là:1000-300-600=100(kg)

Đáp số:100kg đường.

12 tháng 7 2018

1 tấn = 1000 kg đường

Ngày thứ 2 bán được: 300 x 2 = 600 ( kg )

Ngày thứ 3 bán được: 1000 - 600 - 300 =100 (kg)

5 tháng 10 2021

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10 tháng 5 2017

Đổi 300 kg = 0,3 tấn

Ngày thứ hai bán được số tấn là:

       0,3 x 2 = 0,6 ( tấn )

Ngày thứ ba bán số tán là:
       1 - 0,3 - 0,6 = 0,1 ( tấn )

            Đổi 0,1 tấn = 100 kg

Đáp số: 100 kg

10 tháng 5 2017

đổi 1 tấn =1000kg

ngày thứ 2 bán được số kg đường là:

                   300*2=600{kg}

ngày thứ 3 bán được số kg đường là:

                  1000-{600+300}=100{kg}

                             đáp số:100 kg đường

13 tháng 7 2018

Bài giải

Ngày thứ hai cửa hàng bán được số kg đường là: (0,25 điểm)

150 x 3 = 450 (kg) (0,5 điểm)

Cả hai ngày cửa hàng đó bán được số kg đường là: (0,25 điểm)

150 + 450 = 600 (kg) (0,75 điểm)

Đáp số: 600 kg đường (0,25 điểm)

20 tháng 11 2022

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