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