4.25除以2.5乘以9.9加0.17用简便方法计算
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/08/19 17:17:58
4.25除以2.5乘以9.9加0.17用简便方法计算
![4.25除以2.5乘以9.9加0.17用简便方法计算](/uploads/image/z/2011967-71-7.jpg?t=4.25%E9%99%A4%E4%BB%A52.5%E4%B9%98%E4%BB%A59.9%E5%8A%A00.17%E7%94%A8%E7%AE%80%E4%BE%BF%E6%96%B9%E6%B3%95%E8%AE%A1%E7%AE%97)
4.25÷2.5×9.9+0.17
=(4.25×4)÷(2.5×4)×9.9+0.17
=1.7×9.9+0.17
=0.17×(99+1)
=17
=(4.25×4)÷(2.5×4)×9.9+0.17
=1.7×9.9+0.17
=0.17×(99+1)
=17