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