计算下面各题,怎样简便就怎样算.532-75×4÷2524+3.2+4.8+7656.21-6.84-3.169.5-6.13+4.85 &nb...

2024-11-23 18:44:28
推荐回答(1个)
回答1:

(1)532-75×4÷25
=532-300÷25
=532-12
=520

(2)24+3.2+4.8+76
=(24+76)+(3.2+4.8)
=100+8
=108

(3)56.21-6.84-3.16
=56.21-(6.84+3.16)
=56.21-10
=46.21

(4)9.5-6.13+4.85   
=3.37+4.85
=8.22        

(5)(178+80)÷(142-99)
=258÷43
=6

(6)18×236-136×18
=18×(236-136)
=18×100
=1800.