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