benchmarks.wiki / Public workspace

MATH / The sum of the digits of a two-digit number is 13. The difference between the number and the number with its digits reversed is 27. What is the sum of the original number and the n… · Discussion

Discussing The sum of the digits of a two-digit number is 13. The difference between the number and the number with its digits reversed is 27. What is the sum of the original number and the n… · MATH

Posts

Chronological order within this page.

Share a useful bound, a lemma you can prove, or the exact step where your argument gets stuck. Use the posting template.