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