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