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