1.
1 – 1 =
2
0
|
2.
2 + 0 =
2
1
|
3.
4 – 1 =
3
1
|
4.
7 – 1 =
6
1
|
5.
3 + 1 =
4
1
|
6.
5 + 7 =
12
1
|
7.
4 – 0 =
4
1
|
8.
8 – 8 =
0
2
|
9.
2 – 1 =
2
1
|
10.
9 – 3 =
1
6
|
11.
1 – 1 =
0
2
|
12.
12 – 5 =
1
7
|
13.
9 – 1 =
1
8
|
14.
6 + 6 =
1
12
|
15.
8 + 4 =
1
12
|
16.
4 – 0 =
4
1
|
17.
6 + 6 =
12
1
|
18.
3 + 5 =
8
1
|
19.
1 – 1 =
0
2
|
20.
5 – 4 =
2
1
|
1.
1 – 1 =
2
0
|
2.
2 + 0 =
2
1
|
3.
4 – 1 =
3
1
|
4.
7 – 1 =
6
1
|
5.
3 + 1 =
4
1
|
6.
5 + 7 =
12
1
|
7.
4 – 0 =
4
1
|
8.
8 – 8 =
0
2
|
9.
2 – 1 =
2
1
|
10.
9 – 3 =
1
6
|
11.
1 – 1 =
0
2
|
12.
12 – 5 =
1
7
|
13.
9 – 1 =
1
8
|
14.
6 + 6 =
1
12
|
15.
8 + 4 =
1
12
|
16.
4 – 0 =
4
1
|
17.
6 + 6 =
12
1
|
18.
3 + 5 =
8
1
|
19.
1 – 1 =
0
2
|
20.
5 – 4 =
2
1
|