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