问题
解答题
口算我最棒.
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答案
1.05×0.2=0.21, | 6.4÷0.8=8, | 2.4×5=12, | 2.1÷30=0.07, |
1.69-0.9=0.79, | 1.1-0.01=1.09, | 7.3×0.1=0.73, | 36÷0.1=360. |
口算我最棒.
|
1.05×0.2=0.21, | 6.4÷0.8=8, | 2.4×5=12, | 2.1÷30=0.07, |
1.69-0.9=0.79, | 1.1-0.01=1.09, | 7.3×0.1=0.73, | 36÷0.1=360. |