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