2300/25简便计算?34*52+34+68简便计算

分类: 作业答案 • 2022-01-02 13:22:22

问题描述：

答

2300/25
= 23 * 100/25
=23*4
=92
34*52+34+68
= 34*52 + 34*1 + 34*2
= 34*(52+1+2)
= 34*55
= 34*5*11
=170*11
=1870

答

①：2300/25
=2300/(100/4)
=2300/100*4
=92
②：34*52+34*68
=34*(52+68)
=34*120
=34*100+34*20
=3400+680
=4080