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