问题
解答题
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答案
5•a•b=5ab, | 98+17=115, | 103×40=4120, | 7b十5b=12b, |
1000÷125=8, | 90×70=6300, | n×n=n2, | 37十68×0=37, |
380+320=700, | y+y=2y, | 56×78×0=0, | 25×14-25×10=100. |
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5•a•b=5ab, | 98+17=115, | 103×40=4120, | 7b十5b=12b, |
1000÷125=8, | 90×70=6300, | n×n=n2, | 37十68×0=37, |
380+320=700, | y+y=2y, | 56×78×0=0, | 25×14-25×10=100. |