0.695×250+690×0.24+51×6.95简便运算

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/02 13:18:51
0.695×250+690×0.24+51×6.95简便运算

0.695×250+690×0.24+51×6.95简便运算
0.695×250+690×0.24+51×6.95简便运算

0.695×250+690×0.24+51×6.95简便运算
你确定题发对了吗

0.695×250+690×0.24+51×6.95
=6.95×25+6.9×24+51×6.95
=6.95×25+(6.95-0.5)×24+51×6.95
=6.95×25+6.95×24+51×6.95-0.5×24
=6.95×(25+24+51)-12
=6.95×100-12
=695-12
=683

6.95x25+6.95x24+6.95x51
=6.95x(25+24+51)
=695