Question

直接写出得数．

2 3 + 1 6 =	3 4 - 2 5 =	5 6 + 2 9 =	5 8 + 1 3 =
1 4 + 3 8 =	1 2 - 1 5 =	4 7 - 1 6 =	3 4 + 1 7 =
1 5 + 1 8 =	2 3 - 4 9 =	7 10 - 3 5 =	1 2 + 3 7 =

Answer 1

考点：分数的加法和减法

专题：计算题

分析：根据分数加减法的计算方法进行计算．

解答： 解：

2 3 + 1 6 = 5 6	3 4 - 2 5 = 7 20	5 6 + 2 9 = 19 18	5 8 + 1 3 = 23 24
1 4 + 3 8 = 5 8	1 2 - 1 5 = 3 10	4 7 - 1 6 = 17 42	3 4 + 1 7 = 25 28
1 5 + 1 8 = 13 40	2 3 - 4 9 = 2 9	7 10 - 3 5 = 1 10	1 2 + 3 7 = 13 14

点评：口算时，注意运算符号和数据，然后再进一步计算．