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