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