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简便计算:6.25×0.16+264×0.0625+52×0.0625+62.5×0.2

来源:学生作业帮 编辑:拍题作业网作业帮 分类:数学作业 时间:2024/04/29 02:49:17
简便计算:6.25×0.16+264×0.0625+52×0.0625+62.5×0.2
6.25×0.16+264×0.0625+52×0.0625+62.5×0.2
=6.25x0.16+6.25x2.64+6.25x2
=6.25x(0.16+2.64+2)
=6.25x4.8
=2.5x2.5x8x0.6
=(2.5x8)x(2.5x0.6)
=20x1.5
=30