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