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