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