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