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