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