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.急..5.6×69.32+138.64×0.05+693.2×0.43

来源:学生作业帮 编辑:作业帮 分类:数学作业 时间:2024/05/15 18:13:34
.急..
5.6×69.32+138.64×0.05+693.2×0.43
5.6×69.32+138.64×0.05+693.2×0.43
=5.6×69.32+69.32×2×0.05+69.32×4.3
=69.32×(5.6+2×0.05+4.3)
=69.32×10
=693.2