Skip to content / Đến nội dung
ThichHocToan.com

VTMO 2017 — Grade 5 — semifinal Question 4

VTMO · VTMO 2017 — Grade 5 — semifinal

Question 4

Four-digit numbers have hundreds digit $0$. Removing the thousands and hundreds digits makes each number $301$ times smaller. How many such numbers exist?
  1. $0$
  2. $1$
  3. $2$
  4. $3$
  5. $4$