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