8.7*7+0.87*17+0.087*130简便计算
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:2024/06/28 12:18:45
8.7*7+0.87*17+0.087*130简便计算
![8.7*7+0.87*17+0.087*130简便计算](/uploads/image/z/7327719-63-9.jpg?t=8.7%2A7%2B0.87%2A17%2B0.087%2A130%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%97)
8.7*7+0.87*17+0.087*130
=8.7*7+8.7*1.7+8.7*1.3
=8.7*(7+1.7+1.3)
=8.7*10
=87
=8.7*7+8.7*1.7+8.7*1.3
=8.7*(7+1.7+1.3)
=8.7*10
=87