计算下面各题,能简算的要简算.0.125×32×2.5 0.8×6.3-0.8×3.8 50.4÷3.2×2.08 204÷(3.4×0
计算下面各题,能简算的要简算.0.125×32×2.50.8×6.3-0.8×3.850.4÷3.2×2.08204÷(3.4×0.5)(43.26+2.34)÷7.5(...
计算下面各题,能简算的要简算.0.125×32×2.5 0.8×6.3-0.8×3.8 50.4÷3.2×2.08 204÷(3.4×0.5) (43.26+2.34)÷7.5 (20-0.8×9)×5.7.
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(1)0.125×32×2.5, =0.125×8×4×2.5, =(0.125×8)×(4×2.5), =1×10, =10; (2)0.8×6.3-0.8×3.8, =(6.3-3.8)×0.8, =2.5×0.8, =2; (3)50.4÷3.2×2.08, =15.75×2.08, =32.76; (4)204÷(3.4×0.5), =204÷1.7, =120; (5)(43.26+2.34)÷7.5, =45.6÷7.5, =6.08; (6)(20-0.8×9)×5.7, =(20-7.2)×5.7, =12.8×5.7, =72.96. |
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