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