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