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