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