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