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