1.
21 – 17 =
1
4
|
2.
44 + 4 =
48
2
|
3.
36 – 13 =
2
23
|
4.
38 + 12 =
2
50
|
5.
31 + 16 =
2
47
|
6.
24 – 14 =
10
1
|
7.
35 + 15 =
2
50
|
8.
4 + 43 =
47
2
|
9.
16 – 10 =
1
6
|
10.
2 + 33 =
2
35
|
11.
7 – 1 =
1
6
|
12.
12 + 3 =
15
1
|
13.
21 + 14 =
2
35
|
14.
44 – 18 =
26
2
|
15.
14 – 9 =
1
5
|
16.
2 + 19 =
21
2
|
17.
14 + 10 =
24
2
|
18.
29 – 14 =
15
1
|
19.
26 + 17 =
2
43
|
20.
18 – 16 =
1
2
|
1.
21 – 17 =
1
4
|
2.
44 + 4 =
48
2
|
3.
36 – 13 =
2
23
|
4.
38 + 12 =
2
50
|
5.
31 + 16 =
2
47
|
6.
24 – 14 =
10
1
|
7.
35 + 15 =
2
50
|
8.
4 + 43 =
47
2
|
9.
16 – 10 =
1
6
|
10.
2 + 33 =
2
35
|
11.
7 – 1 =
1
6
|
12.
12 + 3 =
15
1
|
13.
21 + 14 =
2
35
|
14.
44 – 18 =
26
2
|
15.
14 – 9 =
1
5
|
16.
2 + 19 =
21
2
|
17.
14 + 10 =
24
2
|
18.
29 – 14 =
15
1
|
19.
26 + 17 =
2
43
|
20.
18 – 16 =
1
2
|