1.
5 + 9 =
1
14
|
2.
4 + 15 =
19
2
|
3.
21 + 24 =
45
2
|
4.
39 – 15 =
24
2
|
5.
23 – 3 =
20
2
|
6.
29 – 4 =
25
2
|
7.
23 – 17 =
1
6
|
8.
41 – 1 =
2
40
|
9.
37 + 8 =
2
45
|
10.
23 – 3 =
2
20
|
11.
49 + 0 =
49
2
|
12.
30 + 16 =
46
2
|
13.
38 + 12 =
2
50
|
14.
9 + 21 =
30
2
|
15.
32 + 8 =
2
40
|
16.
37 – 7 =
30
2
|
17.
8 + 3 =
1
11
|
18.
42 + 2 =
44
2
|
19.
36 + 11 =
47
2
|
20.
20 – 18 =
1
2
|
1.
5 + 9 =
1
14
|
2.
4 + 15 =
19
2
|
3.
21 + 24 =
45
2
|
4.
39 – 15 =
24
2
|
5.
23 – 3 =
20
2
|
6.
29 – 4 =
25
2
|
7.
23 – 17 =
1
6
|
8.
41 – 1 =
2
40
|
9.
37 + 8 =
2
45
|
10.
23 – 3 =
2
20
|
11.
49 + 0 =
49
2
|
12.
30 + 16 =
46
2
|
13.
38 + 12 =
2
50
|
14.
9 + 21 =
30
2
|
15.
32 + 8 =
2
40
|
16.
37 – 7 =
30
2
|
17.
8 + 3 =
1
11
|
18.
42 + 2 =
44
2
|
19.
36 + 11 =
47
2
|
20.
20 – 18 =
1
2
|