Cryptograms are puzzles where capital letters stand in for the digits 1 to 9 of a number. If the same letter is used twice, it’s the same digit in both places.
Solve enough cryptograms, and you’ll start to see patterns — tricks that will help you solve puzzles like these faster and understand the mathematics more deeply.
What digit in place of would make this sum true?
What is the value of
If each letter represents a different positive digit, what must be?
Practice works because, over time, you come up with a playbook of techniques that are frequently successful. But to get the most out of your practice, it can really help to intentionally dissect each of your solutions, extracting components of your strategies that might be reusable for future problems.
In the previous three puzzles, did you use either of these two techniques? They'll both be very useful in the next two challenges.
If each letter represents a different nonzero digit, what must be?
What digit is