Question

直接写出得数．

1 8 + 4 8 =	8 9 - 1 9 =	4 6 - 3 6 =	1 4 + 1 4 + 1 4 =
1 2 + 1 2 =	5 6 - 1 6 =	1- 3 5 =	1- 1 8 - 3 8 =
3 10 + 7 10 =	13 14 + 1 14 =	2 25 + 1 25 =	3 16 + 4 16 + 8 16 =

Answer 1

考点：分数的加法和减法

专题：运算顺序及法则

分析：根据同分母分数加减法的计算法则口算即可．

解答： 解：

1 8 + 4 8 = 5 8	8 9 - 1 9 = 7 9	4 6 - 3 6 = 1 6	1 4 + 1 4 + 1 4 = 3 4
1 2 + 1 2 =1	5 6 - 1 6 = 2 3	1- 3 5 = 2 5	1- 1 8 - 3 8 = 1 2
3 10 + 7 10 =1	13 14 + 1 14 =1	2 25 + 1 25 = 3 25	3 16 + 4 16 + 8 16 = 15 16

点评：解答此题要注意计算的结果要化成最简分数或是整数．