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