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