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