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