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