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