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