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