人教版(新) 四下教案
人教版(新) 四下教案第4页

1、说出下面各题的运算顺序,再计算.

203-134÷2 1 97-【12×6+43】 26×4-125÷5

= = =

= = =

= = =

(95-19×5)÷74    (270+180)÷30-15)

= =

= =

= =

118+1536÷[12×(63-59)] [60+240÷(30-10)]×2

= =

= =

= =

= =

[(60+240÷30)-10]×2 (60+240)÷[(30-10)×2]

= =

= =

= =

= =

2、 根据每一组算式列出综合算式:

32+17=49 34×13=442

49×14=686 459-442=17