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