24*0.4+75/2.5+0.4怎么简算
问题描述:
24*0.4+75/2.5+0.4怎么简算
答
计算器
24*0.4+75/2.5+0.4 = 40
24*0.4+75*0.4+0.4 ,提取0.4
答
24*0.4+75/2.5+0.4
=0.4*(24+1)+30
=0.4*25+30
=10+30
=40