Solution

Shifting Times Tables Abdullah

First name
Abdullah
School
Doha College
School's Twitter handle
https://twitter.com/DohaCollege
Country
Age
13

All times tables are linear sequences. Therefore, in order to find out the original time tables, you have to see the difference in each term of the sequence. That is the original times tables. Then, check how much lower the original times table number is in comparison to the times table, and how much higher it is. You then have the answer.

For example:

7, 10, 13, 17

The sequence has intervals of 3. Therefore it is a times table of 3. 7 is 1 more than 6 and 2 less than 9.
Abdullah