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