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