1.
10 – 9 =
3
1
4
6
|
2.
14 – 8 =
6
5
4
8
|
3.
1 – 1 =
5
0
4
3
|
4.
4 – 1 =
4
2
8
3
|
5.
7 – 1 =
11
1
6
3
|
6.
1 – 0 =
6
1
3
5
|
7.
4 – 4 =
1
3
2
0
|
8.
6 – 0 =
6
10
2
7
|
9.
14 – 3 =
10
11
15
9
|
10.
12 – 11 =
5
2
3
1
|
11.
20 – 4 =
16
17
21
10
|
12.
1 – 0 =
1
4
2
3
|
13.
5 – 5 =
1
0
5
3
|
14.
10 – 6 =
3
2
4
7
|
15.
11 – 0 =
13
8
11
7
|
16.
12 – 6 =
5
1
6
11
|
17.
8 – 5 =
8
3
1
2
|
18.
15 – 1 =
13
7
14
16
|
19.
8 – 1 =
7
12
10
5
|
20.
7 – 1 =
2
1
7
6
|
1.
10 – 9 =
3
1
4
6
|
2.
14 – 8 =
6
5
4
8
|
3.
1 – 1 =
5
0
4
3
|
4.
4 – 1 =
4
2
8
3
|
5.
7 – 1 =
11
1
6
3
|
6.
1 – 0 =
6
1
3
5
|
7.
4 – 4 =
1
3
2
0
|
8.
6 – 0 =
6
10
2
7
|
9.
14 – 3 =
10
11
15
9
|
10.
12 – 11 =
5
2
3
1
|
11.
20 – 4 =
16
17
21
10
|
12.
1 – 0 =
1
4
2
3
|
13.
5 – 5 =
1
0
5
3
|
14.
10 – 6 =
3
2
4
7
|
15.
11 – 0 =
13
8
11
7
|
16.
12 – 6 =
5
1
6
11
|
17.
8 – 5 =
8
3
1
2
|
18.
15 – 1 =
13
7
14
16
|
19.
8 – 1 =
7
12
10
5
|
20.
7 – 1 =
2
1
7
6
|