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