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