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