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