1.
? – 7 = 1
3
5
8
7
|
2.
14 – 8 =
6
5
9
2
|
3.
? – 6 = 5
11
5
8
12
|
4.
1 – 1 =
1
4
3
0
|
5.
? – 12 = 5
17
1
2
8
|
6.
? – 4 = 2
2
5
6
7
|
7.
19 – 7 =
13
17
12
10
|
8.
? – 4 = 13
13
12
6
17
|
9.
? – 8 = 3
7
10
11
2
|
10.
3 – 2 =
6
5
3
1
|
11.
8 – 4 =
4
3
7
2
|
12.
? – 7 = 3
11
13
3
10
|
13.
8 – 1 =
2
7
8
6
|
14.
4 – 1 =
1
6
7
3
|
15.
? – 1 = 12
6
7
10
13
|
16.
? – 16 = 3
7
21
19
11
|
17.
6 – 3 =
5
3
2
4
|
18.
? – 17 = 2
20
22
19
14
|
19.
? – 6 = 5
11
15
1
4
|
20.
3 – 2 =
1
3
5
6
|
1.
? – 7 = 1
3
5
8
7
|
2.
14 – 8 =
6
5
9
2
|
3.
? – 6 = 5
11
5
8
12
|
4.
1 – 1 =
1
4
3
0
|
5.
? – 12 = 5
17
1
2
8
|
6.
? – 4 = 2
2
5
6
7
|
7.
19 – 7 =
13
17
12
10
|
8.
? – 4 = 13
13
12
6
17
|
9.
? – 8 = 3
7
10
11
2
|
10.
3 – 2 =
6
5
3
1
|
11.
8 – 4 =
4
3
7
2
|
12.
? – 7 = 3
11
13
3
10
|
13.
8 – 1 =
2
7
8
6
|
14.
4 – 1 =
1
6
7
3
|
15.
? – 1 = 12
6
7
10
13
|
16.
? – 16 = 3
7
21
19
11
|
17.
6 – 3 =
5
3
2
4
|
18.
? – 17 = 2
20
22
19
14
|
19.
? – 6 = 5
11
15
1
4
|
20.
3 – 2 =
1
3
5
6
|