16×20-2400÷48,720-(750÷15+250)的简便计算

问题描述:

16×20-2400÷48,720-(750÷15+250)的简便计算

16×20-2400÷48
=320-50
=270
720-(750÷15+250)
=720-(50+250)
=720-300
=420