.算一算.13+38=1-25=116-29=74+17=57-15=29+12=-数学

题文

.算一算.
1
3
+
3
8
=
1-
2
5
=
11
6
-
2
9
=
7
4
+
1
7
=
5
7
-
1
5
=
2
9
+
1
2
=
题型:解答题  难度:中档

答案

1
3
+
3
8
=
17
24
1-
2
5
=
3
5
11
6
-
2
9
=
29
18
7
4
+
1
7
=
53
28
5
7
-
1
5
=
18
35
2
9
+
1
2
=
13
18