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