Skip to content / Đến nội dung
ThichHocToan.com

IKMC 2021 - Grades 11-12 - Self-study Question 13

IKMC · IKMC 2021 - Grades 11-12 - Self-study

Question 13

How many three-digit positive integers become a three-digit integer 99 larger when their digits are reversed?
  1. 8
  2. 64
  3. 72
  4. 80
  5. 81