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四升五年级数学脱式计算提升训练
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2022-08-18
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四升五年级数学脱式计算提升训练


简介：
2.881÷0.43－0.24×3.5 = 6.7 - 0.24 x3.5 = 6.7 - 0.84 = 5.86 288÷[（26－14）×8] =288÷[12×8] =288÷96 =3 28-(3.4+1.25×2.4) = 28 - (3.4 + 3) = 28 - 6.4 = 21.6 2.55×7.1+2.45×7.1 = (2.55 + 2.45) x7.1 = 5 x7.1 =35.5 1024÷16×3 =64×3 =192 0.8×〔15.5-(3.21+5.79)〕 = 0.8 x (15.5 - 9) = 0.8 x 6.5 = 5.2 （31.8+3.2×4）÷5 = (31.8 + 12.8)÷5 = 44.6÷5 = 8.92 164-13×5+85 =164-65+85 =99+85 =184