递等式计算(能简则简)0.32+0.68*3.52.5*(0.4+0.8)*12.552*7.5-490*0.75-7.52.5*(1.6/2.5/0.04)
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/10 20:24:39
![递等式计算(能简则简)0.32+0.68*3.52.5*(0.4+0.8)*12.552*7.5-490*0.75-7.52.5*(1.6/2.5/0.04)](/uploads/image/z/2604742-70-2.jpg?t=%E9%80%92%E7%AD%89%E5%BC%8F%E8%AE%A1%E7%AE%97%EF%BC%88%E8%83%BD%E7%AE%80%E5%88%99%E7%AE%80%EF%BC%890.32%2B0.68%2A3.52.5%2A%EF%BC%880.4%2B0.8%EF%BC%89%2A12.552%2A7.5-490%2A0.75-7.52.5%2A%EF%BC%881.6%2F2.5%2F0.04%EF%BC%89)
xőAn0E%d$L%9mP#u3gt5W
. u|^ӥ?_{.wzBvvK0
'ASjO*2W`
}2E5OI=1R1=;J%]cTCGI 0:.Dۅ(eR3USi+r
6nf>x\+
递等式计算(能简则简)0.32+0.68*3.52.5*(0.4+0.8)*12.552*7.5-490*0.75-7.52.5*(1.6/2.5/0.04)
递等式计算(能简则简)
0.32+0.68*3.5
2.5*(0.4+0.8)*12.5
52*7.5-490*0.75-7.5
2.5*(1.6/2.5/0.04)
递等式计算(能简则简)0.32+0.68*3.52.5*(0.4+0.8)*12.552*7.5-490*0.75-7.52.5*(1.6/2.5/0.04)
0.32+0.68X3.5 2.5X(0.4+0.8)X12.5
=0.16X2+0.16X4X3.5 =(2.5X0.4)X12.5+2.5X(0.8X12.5)
=0.16X2+0.16X14 =12.5+25
=0.16X16 =37.5
=2.56
52X7.5-490X0.75-7.5 2.5X(1.6/2.5/0.04)
=52X7.5-49X7.5-7.5X1 =2.5X(1.6/(2.5X0.04)
=7.5X(52-49-1) =2.5X(1.6/0.1)
=7.5X2 =2.5X16
=15 =2.5X4X4
=40