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