3.7X68+31ⅹ68+0.68ⅹ320怎么简便计算?
发布网友
共2个回答
热心网友
3.7x680+31x68+0.68x3200
=37x68+31x68+68x32
=(37+31+32)x68
=100x68
=6800
热心网友
3.7X68+31ⅹ68+0.68ⅹ320
=68×(3.7+31+3.2)
=68×37.9
=2577.2.
