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