Solution

164136

First name
Amy C
School
Pierrepont Gamston Primary School
Country
Age
0

I know that there are ten small rectangles in the counting stick. If you count from the first one with different sizes you get ten. If you do the same from the second one,you get nine, from the third you get eight and so on, so the sum of all the rectangles is 10+9+8+7+6+5+4+3+2+1=55.