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7.5一7.5x0.9脱式计算怎么写?

7.5一7.5x0.9 =7.5x(1-0.9) =7.5x0.1 =0.75

4+15.6×(1.65+0.35) =4+15.6x2 =4+31.2 =35.2 -----------------------------------------------------------------------------------------

一、脱式计算 2.5×7.1×4 16.12×99+16.12 5.2×0.9+0.9 7.28×99+7.28 4.3×50×0.2 60-2.68×0.5 26×15.7+15.7×24 (2.275 +0.625)×0.28 3.94+34.3×0.2 1.2×(9.6÷2.4)÷4.8 9×1.1×4.7 2.7×5.4×3.9 3.6×9.85-5.46 8.05×3.4+7.6 6.58×4.5×0.9 2.8×0....

408-12×24 = 408 - 288 = 120 (46+28)×60 = 74 x 60 = 4440 42×50-17 = 2100- 17 = 2083 32+105÷5 = 32 + 21 = 53 420×(327-238) = 420 x 89 = 37380 (4121+2389)÷7 = 6510 ÷7 = 930 3.416÷(0.016×35) = 3.416 ÷0.56 = 6.1 0.8×[(10...

1/6 + 1/2 -1/6 =1/2, 7.5-(2.5+3.8)=...脱式计算30.8÷[14-(9.85+1.07)] [60-(9.5...194-64.8÷1.8×0.9 36.72÷4.25×9.9 5180-...

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