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