分数的加减混合运算题.doc

分数加减混和运算
- = - = + = + = -=
- = + = + = + 2 = 1 - =
+= += += -= -=
-= += -= 1- = -=
-= += -= += +=
+= += -= += -=
+= -= += += -=
+= -= 7-= + = -=
+=

+= += -= 5-=
+= -= -= 5- = 1--=
+ = + = 2 + = -= +=
+ = + = + = += -=
+ = +
-= += 1-= += +=

+ =


1-= -= + = - = - =
+ = 1 - = + = - = +=
+= += += 1-= -=
- = + = + = + =

+= -= -=
-= += -= 1-= +=
-= += +5= 5-=
= ×8= 8÷= ×4= 7-=
36÷ = 5÷ = 13×60 = ÷ = +=
135÷5= ×2= ÷= +3= ÷=
×16= ÷32= 2-= ÷26= +=
5÷= ×4= ÷120= ×99= -=
×7= +7= ×= ×8= ×100=
÷16= 10-= ×125= +=
四、计算下面各题,能简算的要简算。
-- ×11- ×32
-(+) 5× - ×5 ×125-10
10-- ×-× ×+×
×2- ×101 ×27+73×
-÷ -× 4×9×
×× 78-+22- 15-5÷12-
+ - = - + =
+ - + ) + + + + + 10- -

-+ -(+) +- +-
+(+) +- -(+) 6-(-)
- ( + ) + + ++= +-=
- + 25 - - + - - ( - )
5-- + - + + +(-)


+(-) ++ ++ -(+)
2--= ++= 1--=
1--= ++= ++ + +=
+++ +++ -(+) 3 - - -
-+ +- 1-+ +﹙-﹚
2-﹙+﹚ 15-5+7 1-﹙3-1﹚ -﹙+﹚
--= +-= ++= ++=
1--= ++ ++ 4--
-(+) -++ 2-- - ++
-( -) +(-) 2-- +-
-+ -- ++ +-
3–(- ) 6-(-) ++