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