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