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4.6*0.25+5.4/4

来源:学生作业帮 编辑:作业帮 分类:数学作业 时间:2024/05/10 08:07:06
4.6*0.25+5.4/4
8.2*9.9+82*0.01
16.25/(4/1.6*0.13)
很简单的,只要抓住乘除法的性质
4.6*0.25+5.4/4
=0.25×(4.6+5.4)
=0.25×10
=2.5
8.2*9.9+82*0.01
=8.2×9.9+8.2×0.1
=8.2×(9.9+0.1)
=8.2×10
=82
16.25/(4/1.6*0.13)
=16.25÷(2.5×0.13)
=16.25÷2.5÷0.13
=125÷0.25
=500
加油哦!