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