1.8÷0.25+2.2×0.25简便算法求求你

来源:学生作业帮助网 编辑:六六作业网 时间:2024/10/06 14:15:38
1.8÷0.25+2.2×0.25简便算法求求你1.8÷0.25+2.2×0.25简便算法求求你1.8÷0.25+2.2×0.25简便算法求求你(2-0.2)/0.25+(2+0.2)*0.25=(2

1.8÷0.25+2.2×0.25简便算法求求你
1.8÷0.25+2.2×0.25简便算法
求求你

1.8÷0.25+2.2×0.25简便算法求求你
(2-0.2)/0.25 + (2+0.2)*0.25 =
(2-0.2)*4 + (2+0.2)/4 =
2x4 - 0.2x4 + 2/4 + 0.2/4 =
8 - 0.8 + 0.5 + 0.05 =
8 - 0.25 = 7.75