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