简便运算.3.5×98+35×0.2 2\3+7/ - 知识问答

简便运算.3.5×98+35×0.2 2\3+7/9×3\14要过程!

4个回答

3.5×98+35×0.2
=35*(9.8+0.2)
=35*10
=350
23+7/9×314
=2/3+1/6
=4/6+1/6
=5/6

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