题目
用简便方法计算:1.1x1.1x1.1-1.1x1.1-0.1
提问时间:2021-03-02
答案
1.1x1.1x1.1-1.1x1.1-0.1
=1.1×1.1×(1.1-1)
=1.1×1.1×0.1-0.1
=0.121-0.1
=0.021
=1.1×1.1×(1.1-1)
=1.1×1.1×0.1-0.1
=0.121-0.1
=0.021
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