124*24怎么简便计算
人气：372 ℃ 时间：2020-03-22 16:53:38
解答
124*24
=124*(25-1)
=31*4*25-124
=31*100-124
=3100-124
=2976
124*24
=(125-1)*24
=125*24-24
=125*8*3-24
=1000*3-24
=3000-24
=2976
推荐
猜你喜欢
- 已知A(0,3),B(-1,0),C(3,0),求D点的坐标,使四边形ABCD是直角梯形.（A,B,C,D按逆时针方向排列）
- 意外的反义词是什么?
- stuck on
- 解释一下括号里这些字词.
- Is it better to have different teachers every year,or have the same ones year by year.
- 计算1：lim(n→∞) {n^2[m/n-1/(n+1)-1/)n+2)-1/(n+3)-…-1/(m+n)]}
- 39/(5+x)=0.1方程
- 3.With the time _____,our happiness grew.A.goes by B.going by C.has gone by D.had gone by
