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