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7.28除以3.2除以2.5脱式计算

7.28十3.2x2.5 =7.28十0.8x4x2.5 =7.28+0.8x10 =7.28+8 =15.28

如图

(1)7.28-(3.28+0.25)=7.28-3.28-0.25=4-0.25=3.75(2)2518÷(12-13+19 )=2518÷518=5(3)350÷25×4÷8=350×4÷(8×25)=1400÷200=7(4)2.94×37+4.06÷213=(2.94+4.06)×37=7×37=3

累,望采纳谢谢 5.6×2.9 3.77×1.8 0.02×96 5.22×0.3 9.99×0.02 4.67×0.9 5×2.44 1.666×6.1 9.432×0.002 5.6×6.5 4.88...

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....

1、用竖式计算 0.396÷1.2= 0.756÷0.36= 15.6×13= 0.18×15= 0.025×14= 3.06×36= 0.04×0.12= 3.84×2.6≈ 5.76×3= (保留一位小数) 7.15×22 90.75÷3.3 3.68×0.25 16.9÷0.13 1.55÷3.9 3.7×0.016 13.76×0.8= 5.2×0.6 8.4×1.3 6.4×0.5 4.48×0.4 5.25...

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