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