Two three-digit integers have all six of their digits distinct. The first digit of the second integer is twice the last digit of the first integer. What is the smallest possible sum of two such integers?
Select one option, then click Submit.
597
546
537
535
301
Select an option, then submit.
Sign in or create an account to reveal answers, view the solution, and save your progress. Create a free account to unlock practice and keep track of your work.
Junior Kangaroo 2025 (2025)
One puzzle per day. Cryptarithm, Magic Square, Summit. No sign-up required to play.
Play daily puzzle →Interactive problems and curated lessons—water pouring, magic squares, knight's tour, and more.
Browse library →See how you rank. Top solvers by problems solved correctly. Sign in to climb the ranks.
View leaderboard →Junior Kangaroo 2025 (2025)