Question 7
How many positive integers at most twenty million one hundred twelve thousand twelve use only the digits zero, one or two?
IMC 2012 — Keystage 3 (IWYMIC) — individual Question 7
xIMC · IMC 2012 — Keystage 3 (IWYMIC) — individual
xIMC · IMC 2012 — Keystage 3 (IWYMIC) — individual