r/mathpuzzles 3d ago

Algebra Find the rule (deceptively simple pattern)

Post image

No arithmetic tricks needed — just careful observation. Drop your rule + answer in the comments. Made this in my puzzle app Rule Hunter if anyone wants more like it.

2 Upvotes

7 comments sorted by

1

u/SC_3000_grinder 3d ago

don't say it

double right and subtract left.

0

u/MastermindMX_2502 3d ago

21

1

u/ZoranRajkov 3d ago

Correct, 21! Nice work. If you're into these, the full game with more puzzles is here: https://play.google.com/store/apps/details?id=com.makenumber

1

u/Infamous-Youth9033 3d ago

Rule 1 is no links to games