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