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