(1⼀2-1⼀5+1⼀4)×60简便运算

2024-11-30 05:34:00
推荐回答(5个)
回答(1):

如图

回答(2):


回答(3):


see

回答(4):

(1/2-1/5+1/4)x60
=1/2x60-1/5x60+1/4x60
=30-12+15
=33

回答(5):

(1/2-1/5+1/4)×60
=(1/2)x60 -(1/5)x60 + (1/4)x60
=30-12+15
=30+3
=33