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