题目内容

脱式计算,能简算的要简算。
(1)(-)×24- (2)÷[-(-)]
(3)÷(-)× (4)×+1÷+×
(5)35.5+(2.8-0.8)÷80% (6)5.6×(480%-480%÷150%)
(7)×+×+÷ (8)×370%+630%×+440%
(1)原式=×24-×24-
                =14-9-
                =
(2)原式=÷(-+
                =÷
                =
(3)原式=÷×
                =×
                =
(4)原式=×(+1+
                =×2
                =
(5)原式=35.5+2÷80%
                =35.5+2.5
                =38
(6)原式=5.6×(480%-320%)
                =5.6×160%
                =8.96
(7)原式=(++)×
                =2×
                =
(8)原式=×(370%+630%)+440%
                =2+440%
                =6.4
  
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