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