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