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