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