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