Problem / game
First name
jaimie
School
international grammar school
Country
Age
11
Perimeter challenge
Firstly I used the trial and error strategy to find out the height. If 13 is the size of 3 blocks I doubled 13 and found 26. If two of the 3 blocks are taken away then 23-13=7 so 7 is the answer of one blocks height so 13 – 7= 6 if 6 is the length of two blocks then 6 divided 2 then 3 is the length .the perimeter is 20.