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