2300/25简便计算?34*52+34+68简便计算_数学解答

2300/25简便计算?34*52+34+68简便计算

人气：327 ℃　时间：2019-10-11 06:04:11

解答

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