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