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