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