计算下面各题.29+16815-2578-5627+13415+72056-51258+712914-27.-五年级数学

题文

计算下面各题.
2
9
+
1
6
8
15
-
2
5
7
8
-
5
6
2
7
+
1
3
4
15
+
7
20
5
6
-
5
12
5
8
+
7
12
9
14
-
2
7
题型:解答题  难度:中档

答案

2
9
+
1
6
=
7
18
8
15
-
2
5
2
15
7
8
-
5
6
=
1
24
2
7
+
1
3
=
13
21