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