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