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