53x46 71x54 82x54简算怎么算

2024-11-30 01:27:50
推荐回答(1个)
回答1:

原式
=53x46+71x54+82x54
=53x46+(71+82)x54
=53x46+153x54
=53x46+53x54+100x54
=53x(46+54)+5400
=53x100+5400
=5300+5400
=5000+300+5000+400
=10000+700
=10700