题目内容
选择合适的方法计算。 | ||||||
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(1)22.5×(7.8+8.2) =22.5×16 =360 |
(2)13.8-0.416-2.584 =13.8-(0.416+2.584) =10.8 |
(3)1.25×0.25×3.2 =1.25×8×(0.4×0.25) =1 |
(4)71.8×0.9+7.18 =71.8×(0.9+0.1) =71.8 |
(5)7.3×2.4-14×0.73 =7.3×(2.4-1.4) =7.3 |
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