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