Solution

154384

Problem / game
Up and Down Staircases Back to problem
First name
Pradeep Rajagopal
School
Peak School
Country
Hong Kong
Age
9
Email address
rajagp1@peakschool.net

1 step needs 1 block, = 1*1
2 steps need 4 blocks, = 2*2
3 steps need 9 blocks, = 3*3
so ....
5 steps will need 5*5 = 25 blocks
n steps will need n*n blocks....