用竖式计算(带*的要验算).423+349=*401+389=940-762=*500-453=33÷8=52÷6

2024-12-05 08:20:12
推荐回答(1个)
回答1:

423+349=772

401+389=790

验算:

940-762=178

500-453=47

33÷8=4.125

52÷6=8.

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6