问题 解答题
口算:
0.1×0.1=
0.24×0.5=5.4+3.6=1.25-0.25=6.45×0.01=
答案

0.1×0.1=0.01,0.24×0.5=0.12,5.4+3.6=9,1.25-0.25=1,6.45×0.01=0.0645.

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