64×15-60简便计算,怎么算?

2025-04-15 00:53:43
推荐回答(3个)
回答1:

64×15-60
=(60+4)*15-60
=60*15+4*15-60
=900+60-60
=900

回答2:

15*(60—4)
=(15*4)-60
=11*60
=660

回答3:

64*15-60=(60+4)*15-60
=60*15+60-60=60*15=900