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