Problem / game
First name
Olivia
School
Highgate
Country
Age
0
Filename
I worked from right to left. The first digit had to be 7 because 7×3 is 21 and that ends in 1. I carried the 2 and then I had to look for a number which when multiplied by 3 with 2 added gives a number with 7 in the last digit. I continued doing this from right to left until I had found all the numbers.