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