6.25+17.25+24.25+35.25+9.25+7.25怎么简算

问题描述:

6.25+17.25+24.25+35.25+9.25+7.25怎么简算

6.25+17.25+24.25+35.25+9.25+7.5
=(6+17+24+35+9+7)+(6x0.25)
=98+1.5
=99.5
.