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