4.66 ×0.28×0.28-4.66简便方法计 - 知识问答

4.66 ×0.28×0.28-4.66简便方法计算

1个回答

4.66 ×0.28×0.28-4.66
=4.66×（0.28×0.28-1）
=4.66× （-0.9216）
=-4.23936
不过题目貌似有问题
4.66*0.28+0.466*8.2-4.66
=4.66x0.28+4.66x0.1x8.2-4.66
=4.66x(0.28+0.82-1)
=4.66x0.1
=0.466

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