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Hà Gia Hân
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0
2022-03-16 06:11:53
2022-03-18 09:36:18
2022-03-18 09:36:18
2022-03-13 12:09:08
2022-03-13 11:55:14
2022-03-02 12:09:36
2022-03-02 12:09:34
2022-03-02 12:09:14
2022-02-28 12:14:13
Hướng dẫn giải nè :
a) 5 x (10 + 9)
Cách 1:
5 x (10 + 9) = 5 x 19 = 95
Cách 2:
5 x (10 + 9) = 5 x 10 + 5 x 9 = 50 + 45 = 95
b) 10 x (30 + 5)
Cách 1:
10 x (30 + 5) = 10 x 35 = 350
Cách 2:
10 x (30 + 5) = 10 x 30 + 10 x 5 = 300 + 50 = 350
2022-02-28 12:11:45