Problem
First name
Lily and Harry
School
Harrison primary school
Country
Age
11
So when we started we tried to find what number each row needed to add up to so to do that we needed to find the mean and that was 15 so we put 5 in the centre because it was 3x5=15 and each row had 3. So then we started to put the other numbers around the edge until we got
816
357
492
Then after we got one we just started to move the numbers around to get many different possibilitys:
438
951
276
And
294
753
618
And so on we also flipped the numbers around so they where backwards