分数加减法简便运算-- 1 分数加减法简便运算专项练习 136 题(有答案) (1 ) + + ﹣ (2 ) ﹣( ﹣ ) (3 ) . (4 ) ﹣( ﹣ ) (5 ) + + + (6 ) + ﹣ + (7 ) ﹣( +) (8 ) ﹣ ﹣ (9 ) ﹣ + ﹣ . (1 0 ) . (1 1 ) 9 9 9+9 9+9+ . (1 2 ) + + + + ++++ (1 3 ) ﹣+ ﹣ (1 4 ) ﹣(﹣1 ) (1 5 ) 2 ﹣ ﹣ . (1 6 ) ﹣0 .4 +﹣ . (1 7 ) . (1 8 ) 分数加减法简便运算-- 2 (1 9 ) (2 0 ) (2 1 ) +﹣ (2 2 ) 1 ﹣﹣ (2 3 ) ++ + (2 4 ) (2 5 ) (2 6 ) + ﹣ (2 7 ) ﹣( ﹣ ) (2 8 ) + + (2 9 ) 3 ﹣ (3 0 ) (3 1 ) 4 ﹣﹣ (3 2 ) . (3 3 ) +( + ) (3 4 ) ﹣( +) (3 5 ) + + + . (3 6 ) ++ + (3 7 ) + ﹣ (3 8 ) + ﹣ + 分数加减法简便运算-- 3 (3 9 ) +( ﹣ )+ (4 0 ) 0 .5 8 ++1 .1 2 + (4 1 ) 1 1 ﹣﹣. (4 2 ) (4 3 ) 3 .5 ﹣﹣. (4 4 ) + + +﹣﹣. (4 5 ) ﹣ + ﹣ (4 6 ) ﹣( +) (4 7 ) + + + . (4 8 ) 6 ﹣﹣ (4 9 ) ﹣ + (5 0 ) ﹣( ﹣ ) (5 1 ) + ﹣ (5 2 ) +++ (5 3 ) ﹣ +﹣ (5 4 ) + + + (5 5 ) 8 ﹣﹣ (5 6 ) + ﹣+ (5 7 ) ﹣( + ) (5 8 ) 2 ﹣ ﹣ 分数加减法简便运算-- 4 (5 9 ) ﹣+ (6 0 ) + + + (6 1 ) ﹣( + ) (6 2 ) 1 ﹣ ﹣ ﹣ ﹣﹣ (6 3 ) 6 ﹣﹣ (6 4 ) (6 5 ) ﹣ +﹣ (6 6 ) ﹣( ﹣ ) (6 7 ) ﹣( + ) (6 8 ) . (6 9 ) 1 ﹣()﹣. (7 0 ) ﹣( + ) (7 1 ) + + (7 2 ) ﹣( ﹣ ) (7 3 ) + ﹣+ . (7 4 ) . (7 5 ) . (7 6 ) ﹣+ (7 7 ) + + 分数加减法简便运算-- 5 (7 8 ) ﹣+ (7 9 ) +++ (7 9 )+2+ +3, (8 0 ) + + , (8 1 )+++, (8 2 ) , (8 3 )﹣( +), (8 4 ) (8 5 ) (8 6 ) ﹣ + , (8 7 ), (8 8 ) + ﹣ + , (8 9 ), (9 0 )(2﹣1)﹣(1﹣2) (9 0 )(2﹣1)﹣(1...