分数加减法简便运算 136 题(有答案)分数加减法简便运算专项练习 136 题(有答案)(1) ++(2)()(3)
(4)()+++(5)(5) + +(6)( + )(8)(7)+
• •(8)
(9)999+99+9+
(10)++++++++(11)+(12)(1)(13) 2
(18)(19)(20)+(21)1(22)+++(23)(24)(25)(16)+(17)()(18)++
(19)3(30)(20)4(21)
(22)+( + )(23)( + )(24)+++
+++(36)+(37)+ +(38)+ () +(39)0
12+(40)11
(41)(42)(25)3
5(26)+++(45)(27)( + )(28)+++
(29)6• •+(49)(30)()+(51)+++(52)(31)+(32)+++8(55)+ +(56)(33)( + )(34)2(35)+(36)+++(37)( + )1(62)(38)6(64)+(65)()(66)(39)( + )(40)
• •(41) 1()
(42)( + )(43)++(44)()(45)+ +
(48)+++(77)+(78)+++(79)+2++3
(79)(80)++
(81)+++
(83)( + )
(84)(85)(84)+
(87)(88)+ +
(90) (2 1 )( 1 2)(90)(2 1 )( 1 2)
( 91 ) 19
76 4 3
( 92 ) 8 8+2
( 93 ) 2
( 94 )+
( 95 )()
(101 ) 16 x( 10+)
(102)2
(103)11+13+15+1