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