Solution

36919

First name
Annie Mills
School
Bierton
Country
Age
9

This question- Whats inside the box? I've done and the 1st question I've concluded with the number eight. This is how I worked it out:
I divided each number by the largest possible numbers [to start with] ,and the three numbers I tryed were seven,nine,and eight.finally I found out that the largest number to go inside the box was the number eight. And so my answer to the first question to whats inside the box was Eight.

The 2nd question to whats inside the box I have concluded with the number Eleven And this is how I worked it out:
First of all I got the four numbers 143,297,341 and 1221.And I started off with the smallest number which is 143 and I divided it by nine and it didn't work becuase it ended up with eight, and I needed the number to be in the nine times table and eight is NOT in the nine times table. So I sussed that it cannot be nine or eight. Next I divided 143 by 11 and it did work for all of the numbers so I new that 11 must be the the number.

And so that was my Answers to Whats Inside The Box?