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6.27×3.6+37.8×0.36 369×0.99+3.69 (0.64+0.32)÷0.64 13.5×2.5-0.35×25的简便算法
人气:196 ℃ 时间:2020-01-30 22:45:47
解答
6.27×3.6+37.8×0.36 369×0.99+3.69 (0.64+0.32)÷0.64 13.5×2.5-0.35×256.27×3.6+37.8×0.36=6.27*3.6+3.78*3.6=3.6*(6.27+3.78)=3.6*(10+0.05)=36+0.18=36.18369×0.99+3.69 =369*0.99+369*0.01=369*(0.99+...
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