脱式计算. 25×4×3.2 | 32×3.2×0.7 | 4.4×0.4×0.4 |
2×0.7×3.3 | 0.125×32×2.5. |
(1)25×4×3.2 =100×3.2 =320; | (2)32×3.2×0.7 =102.4×0.7 =71.68; | (3)4.4×0.4×0.4 =1.76×0.4, =0.704; |
(4)2×0.7×3.3 =1.4×3.3 =4.62; | (5)0.125×32×2.5 =0.125×(8×4)×2.5 =(0.125×8)×(4×2.5) =1×10 =10. |
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