计算下面各题(能简算的要简算):2506-10517÷13+14×106[0.8+0.75×(0.65-0.25)]÷0.01(4 4
计算下面各题(能简算的要简算):2506-10517÷13+14×106[0.8+0.75×(0.65-0.25)]÷0.01(447-11114)÷(47+23)×56...
计算下面各题(能简算的要简算):2506-10517÷13+14×106[0.8+0.75×(0.65-0.25)]÷0.01(4 4 7 -1 11 14 )÷( 4 7 + 2 3 )× 5 6 1 1 3 -2÷(3 3 5 × 5 9 )÷.0.75+1.32.
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①2506-10517÷13+14×106, =2506-809+1484, =1697+1484, =3181; ②[0.8+0.75×(0.65-0.25)]÷0.01, =[0.8+0.75×0.4]÷0.01, =[0.8+0.3]÷0.01, =1.1÷0.01, =110; ③(4 -1 )÷( + )× , =(3 -1 )÷( + )× , = ÷ × , = × × , =1 ; ④1 -2÷(3 × )÷.0.75+1.32, =1 -2÷2÷.0.75+1.32, =1 -1÷.0.75+1.32, =1 -1 +1.32, =1.32. |
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