计算6.25+17.25+24.25+35.25+9.25+7.25的简便算法
问题描述:
计算6.25+17.25+24.25+35.25+9.25+7.25的简便算法
答
6.25+17.25+24.25+35.25+9.25+7.25
=(6+17+24+35+9+7)+0.25×6
=98+1.5
=99.5