6.25*0.16 264*0.0625 7.2*6.25怎么用简便方法?

2025-06-28 05:25:21
推荐回答(1个)
回答1:

原式
=6.25x0.16+264x0.0625+7.2x6.25
=6.25x0.16+2.64x6.25+7.2x6.25
=6.25x(0.16+2.64+7.2)
=6.25x(2.8+7.2)
=6.25x10
=62.5