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