题目内容
口算
| 5-2.8= | 4×0.25= | 0.46÷4.6= | 5.8+4.6= |
| 0.32×0.2= | 32.1×0.3= | 7.5-0.3= | 3.2÷0.08= |
| 5-2.8=2.2, | 4×0.25=1, | 0.46÷4.6=0.1, | 5.8+4.6=10.4, |
| 0.32×0.2=0.064, | 32.1×0.3=9.63, | 7.5-0.3=7.2, | 3.2÷0.08=40. |
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