1.
? – 3 = 7
10
8
2
1
|
2.
14 – 0 =
1
16
18
14
|
3.
23 – 12 =
1
14
11
6
|
4.
36 – 9 =
27
21
25
26
|
5.
? – 21 = 14
21
37
39
35
|
6.
? – 3 = 6
1
13
11
9
|
7.
47 – 15 =
20
32
22
1
|
8.
? – 15 = 1
21
7
16
12
|
9.
? – 7 = 1
9
8
4
11
|
10.
? – 14 = 7
8
4
21
26
|
11.
? – 17 = 6
23
9
10
17
|
12.
19 – 19 =
5
2
4
0
|
13.
42 – 17 =
25
26
13
30
|
14.
42 – 23 =
19
3
7
15
|
15.
? – 0 = 13
11
9
1
13
|
16.
23 – 11 =
1
16
12
2
|
17.
? – 2 = 14
4
19
9
16
|
18.
10 – 4 =
5
11
6
7
|
19.
20 – 12 =
13
9
8
2
|
20.
9 – 6 =
3
7
6
2
|
1.
? – 3 = 7
10
8
2
1
|
2.
14 – 0 =
1
16
18
14
|
3.
23 – 12 =
1
14
11
6
|
4.
36 – 9 =
27
21
25
26
|
5.
? – 21 = 14
21
37
39
35
|
6.
? – 3 = 6
1
13
11
9
|
7.
47 – 15 =
20
32
22
1
|
8.
? – 15 = 1
21
7
16
12
|
9.
? – 7 = 1
9
8
4
11
|
10.
? – 14 = 7
8
4
21
26
|
11.
? – 17 = 6
23
9
10
17
|
12.
19 – 19 =
5
2
4
0
|
13.
42 – 17 =
25
26
13
30
|
14.
42 – 23 =
19
3
7
15
|
15.
? – 0 = 13
11
9
1
13
|
16.
23 – 11 =
1
16
12
2
|
17.
? – 2 = 14
4
19
9
16
|
18.
10 – 4 =
5
11
6
7
|
19.
20 – 12 =
13
9
8
2
|
20.
9 – 6 =
3
7
6
2
|