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