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