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