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