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 ) ﹣+ (