| 脱式计算,能简算的要简算 32.54-0.46-4.54 7.6×99+7.6 102×26-26 98×46. |
| (1)32.54-0.46-4.54 =32.54-(0.46+4.54) =32.54-5 =27.54; (2)7.6×99+7.6 =7.6×(99+1) =7.6×100 =760; (3)102×26-26 =(102-1)×26 =101×26 =2626; (4)98×46 =(100-2)×46 =100×46-2×46 =4600-92 =4508. |
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