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