1.
21 – 21 =
0
2
3
4
|
2.
5 – 5 =
2
0
4
3
|
3.
38 + 8 =
4
2
46
3
|
4.
11 – 0 =
1
3
11
2
|
5.
42 – 13 =
29
2
3
4
|
6.
12 + 36 =
2
3
48
4
|
7.
26 + 15 =
2
3
41
4
|
8.
35 + 10 =
2
4
3
45
|
9.
38 + 11 =
49
4
2
3
|
10.
44 – 33 =
3
2
1
11
|
11.
48 – 33 =
3
2
1
15
|
12.
42 + 1 =
3
4
2
43
|
13.
21 + 29 =
3
50
2
4
|
14.
5 – 5 =
3
2
4
0
|
15.
36 + 11 =
2
3
47
4
|
16.
8 + 8 =
16
2
3
4
|
17.
30 + 2 =
2
3
4
32
|
18.
30 + 12 =
42
3
2
4
|
19.
44 – 38 =
1
3
2
6
|
20.
36 + 10 =
2
46
3
4
|
1.
21 – 21 =
0
2
3
4
|
2.
5 – 5 =
2
0
4
3
|
3.
38 + 8 =
4
2
46
3
|
4.
11 – 0 =
1
3
11
2
|
5.
42 – 13 =
29
2
3
4
|
6.
12 + 36 =
2
3
48
4
|
7.
26 + 15 =
2
3
41
4
|
8.
35 + 10 =
2
4
3
45
|
9.
38 + 11 =
49
4
2
3
|
10.
44 – 33 =
3
2
1
11
|
11.
48 – 33 =
3
2
1
15
|
12.
42 + 1 =
3
4
2
43
|
13.
21 + 29 =
3
50
2
4
|
14.
5 – 5 =
3
2
4
0
|
15.
36 + 11 =
2
3
47
4
|
16.
8 + 8 =
16
2
3
4
|
17.
30 + 2 =
2
3
4
32
|
18.
30 + 12 =
42
3
2
4
|
19.
44 – 38 =
1
3
2
6
|
20.
36 + 10 =
2
46
3
4
|