题目内容
脱式计算,能简算的要简算。 | ||||||
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(1)534+26+166+74 =534+166+(26+74) =800 |
(2)72×28+72×172 =72×(28+172) =14400 |
(3)[275-(32+46)]×28 =(275-78)×28 =5516 |
(4)60×(600-400÷25) =60×584 =35040 |
(5)(235-63-37)×6 =(235-100)×6 =810 |
(6)301×89-89 =89×300 =26700 |
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