The document describes a series of steps where numbers are added to values that are input and output. It starts with doubling the input value, then adding 10, 3 and 2 to successive input values. Tables are shown with the input, output and added values. The document ends by asking what method was used.

2. IN
OUT
What's my rule?
double

3. IN
OUT
What's my rule?
+10

4. IN
OUT
What's my rule?
+3

5. IN
OUT
What's my rule?
+2

7. 6 3 2
4 3 8
5 0 5
What method did you use?

8. 4 8
5 4
1 0
5 4

9. 6 3 2
4 3 8
5 0 5
What method did you use?