题目内容
口算
(1)15×10= (2)300×2=
(3)23×20= (4)230×4=
答案:150;600;460;920
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口算
| 1.05×0.2= | 0.7×11= | 100×0.74= | 3.6÷12= |
| 6.4÷0.8= | 7.3×0.1= | 7.5×0.15= | 0.78÷0.3= |
| 2.4×5= | 36÷0.1= | 0.25×4= | 9.1÷0.7= |
题目内容
口算
(1)15×10= (2)300×2=
(3)23×20= (4)230×4=
| 1.05×0.2= | 0.7×11= | 100×0.74= | 3.6÷12= |
| 6.4÷0.8= | 7.3×0.1= | 7.5×0.15= | 0.78÷0.3= |
| 2.4×5= | 36÷0.1= | 0.25×4= | 9.1÷0.7= |