题目内容
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= |
| 504÷3.2×2.08= | (20-0.8×9)×5.7= |
(1)0.125×32×2.5,
=(0.125×8)×(4×2.5),
=1×10,
10;
(2)0.8×6.3-0.8×3.8,
=0.8×(6.3-3.8),
=0.8×2.5,
=2;
(3)504÷3.2×2.08,
=157.5×2.08,
=327.6;
(4)(20-0.8×9)×5.7,
=(20-7.2)×5.7,
=12.8×5.7,
=72.96.
=(0.125×8)×(4×2.5),
=1×10,
10;
(2)0.8×6.3-0.8×3.8,
=0.8×(6.3-3.8),
=0.8×2.5,
=2;
(3)504÷3.2×2.08,
=157.5×2.08,
=327.6;
(4)(20-0.8×9)×5.7,
=(20-7.2)×5.7,
=12.8×5.7,
=72.96.
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