1.
21 – 10 =
1
11
|
2.
46 – 17 =
29
2
|
3.
16 – 6 =
10
1
|
4.
25 + 11 =
2
36
|
5.
18 – 12 =
6
1
|
6.
9 + 21 =
30
2
|
7.
15 – 1 =
1
14
|
8.
33 – 26 =
7
1
|
9.
21 + 23 =
2
44
|
10.
35 + 4 =
39
2
|
11.
23 + 1 =
2
24
|
12.
4 + 26 =
30
2
|
13.
40 + 2 =
42
2
|
14.
35 + 13 =
48
2
|
15.
7 – 3 =
1
4
|
16.
7 + 4 =
1
11
|
17.
34 – 20 =
14
1
|
18.
14 + 33 =
47
2
|
19.
20 + 19 =
39
2
|
20.
25 + 23 =
2
48
|
1.
21 – 10 =
1
11
|
2.
46 – 17 =
29
2
|
3.
16 – 6 =
10
1
|
4.
25 + 11 =
2
36
|
5.
18 – 12 =
6
1
|
6.
9 + 21 =
30
2
|
7.
15 – 1 =
1
14
|
8.
33 – 26 =
7
1
|
9.
21 + 23 =
2
44
|
10.
35 + 4 =
39
2
|
11.
23 + 1 =
2
24
|
12.
4 + 26 =
30
2
|
13.
40 + 2 =
42
2
|
14.
35 + 13 =
48
2
|
15.
7 – 3 =
1
4
|
16.
7 + 4 =
1
11
|
17.
34 – 20 =
14
1
|
18.
14 + 33 =
47
2
|
19.
20 + 19 =
39
2
|
20.
25 + 23 =
2
48
|