ldcf.net
当前位置:首页 >> (3/5×3.625+4.375×0.6)×1.25简便运算 >>

(3/5×3.625+4.375×0.6)×1.25简便运算

原式 =0.6×(3.625+4.375)×1.25 =0.6×8×1.25 =0.6×10 =6

①1÷2.5+2.5×0.4+1=0.4+1+1,=2.4;②89×[34-(716-0.125)]=89×[34-(716-18)],=89×[34-(716-216)],=89×[1216-516],=89×716,=718;③(35×3.625+4.375×0.6)×1.25=(0.6×3.625+4.375×0.6)×1.25=(3.625+4.375)×0.6×1.25,=8×1.25×0.6,=1...

网站首页 | 网站地图
All rights reserved Powered by www.ldcf.net
copyright ©right 2010-2021。
内容来自网络,如有侵犯请联系客服。zhit325@qq.com