
计算下面各题,注意使用简便算法. ①0.36+9.6÷3.2 ②3.2×5.7+6.8×5.7
计算下面各题,注意使用简便算法.①0.36+9.6÷3.2②3.2×5.7+6.8×5.7③25×6.8×0.04④3.75÷〔0.3×(1.34-0.84)〕...
计算下面各题,注意使用简便算法. ①0.36+9.6÷3.2 ②3.2×5.7+6.8×5.7 ③25×6.8×0.04 ④3.75÷〔0.3×(1.34-0.84)〕
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①0.36+9.6÷3.2, =0.36+3, =3.36; ②3.2×5.7+6.8×5.7, =(3.2+6.8)×5.7, =10×5.7, =57; ③25×6.8×0.04, =25×0.04×6.8, =1×6.8, =6.8; ④3.75÷[0.3×(1.34-0.84)], =3.75÷[0.3×0.5], =3.75÷0.15, =25. |
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