480-(52 23×12)简便计算?

2024-11-15 11:39:58
推荐回答(3个)
回答1:

480-(52+23X12)
=480-(52+23X10+23X2)
=480-(230+52+46)
=480-230-98
=250-100+2
=152

回答2:

数学,遇到小括号先算小括号裏面的

回答3:

480-(52+23×12)
=480-(40+12+23×12)
=480-{40+12×(1+23)}
=480-(40+12×24)
=480-40-288
=440-200-88
=240-88
=152