Numeos

A feed of mental-math puzzles you can swipe like a timeline. Tap a card and it gives you the answer, and then the shortcut that gets you there without a pen. MADE, NOT STORED Every card is built on your phone the moment you reach it, from 58 problem types across 10 topics, so the feed never ends. Scroll back and the cards are where you left them; tomorrow brings a fresh set. THE TRICK, NOT JUST THE ANSWER An answer on its own teaches you nothing. Every card names the shortcut behind it (break the tens, anchor at 50, build it from 10%, pay the complement, take the gap out first) and opens onto the worked steps one at a time, plus a short explanation of why the shortcut is allowed at all. A TEST EVERY TENTH CARD Nine cards, then a quick three-option test on one you have just read. The wrong options are near-misses built by nudging the real answer, so guessing does not pay. PRACTICE A…