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五年级下册数学分数加减法练习题A卷
脱式计算(能简算的要简算)
++ +- -( + ) 11- -
-( - ) -(-) +- -+
+- -(+) +(- ) -(+)
-(+) -+ -+- +--
-(+) +++ ++ +++
+++ ++ -+- 0.88++0.12
68-7.5+32-2.5 15-5÷12- 10-4.8-3.2 + -
五年级下数学分数加减法练习题B卷
一、直接写得数
2.4÷0.08= 10.8÷9= 9.6÷0.8= 108÷0.2=
0.49÷0.7= 0.65÷0.1= 3.25×100= 0.25×8=
0.56÷0.07= 1.25×4= 3.28×0.1= 3.9÷0.13=
0.72×0.1= 0.01×0.1= 0.25×0.4= 1.6÷0.8=
+ = - = 7- = + =
+ = - = + = + =
- = - = - = +=
-= - = += + =
- = += - = + =
- - = - - = 1- - =
二、解方程x+ = x-= x-= 1
x-( - ) = x+x = x+0.75=0.8
+ + x = x - x= x- =