题目内容
口算
| 0.4×0.25= | 10÷0.5= | 1-0.15= | 23×4+27×4= | 2.7×0.2= |
| 225-99= | 0.36÷2= | 0.06÷0.05= | 63-2.4-7.6= | 8×0.125= |
| 0.4×0.25=0.1, | 10÷0.5=20, | 1-0.15=0.85, | 23×4+27×4=200, | 2.7×0.2=0.54, |
| 225-99=126, | 0.36÷2=0.18, | 0.06÷0.05=1.2, | 63-2.4-7.6=53, | 8×0.125=1. |
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