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