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