题目内容
| 1.2×2.5+0.8×2.5=2.5×(1.2+0.8)=2.5×2=5应用了 |
A.乘法分配律 B.乘法结合律 C.乘法交换律 |
试题答案
A
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0.5×(2.6-2.4)= | (0.18+0.9)÷0.9= | 3-
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| 1.8+2.6= | 2.5×4= | 12.5×8= | 1.65÷(6.5÷6.5)= |
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| 7.5-7.5= | 0.6×9= | 7-1.5= | 5.9×3.6×0= |
| (1)0.8+ | (2)1÷ | (3)7÷1.25=______ |
| (4)0.36+0.4=______ | (5) | (6)1.25×7.2+2.8×1.25=______. |