题目内容
口算
| 4.5+5.5= | 9.8-4.8= | 3.4×0.2= | 2.5÷10= | 0.43×100= |
| 2.5×4= | 1.25×8= | 1÷0.5= | 5.6÷0.1= | 32= |
| 4.5+5.5=10, | 9.8-4.8=5, | 3.4×0.2=0.68, | 2.5÷10=0.25 | 0.43×100=43, |
| 2.5×4=10, | 1.25×8=10, | 1÷0.5=2, | 5.6÷0.1=56, | 32=9. |
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