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