Hidden Sums

Hidden Sums is a word search where the words are math.

Each round gives you a target number and a chalkboard grid of digits and signs. Hidden in the grid are lines of squares that add, take away, multiply or divide to make the target. Drag across a line to check it: if it makes the target, it's looped in chalk. Find them all to finish the round.

LEARN THE SIGNS ONE AT A TIME The first rounds use only +. Then − joins in, then ×, then ÷. After that, the grids grow from 7×7 to 10×10 and the targets climb from 50 all the way to 1000.

MADE FOR CURIOUS KIDS • Hand-drawn chalk numbers, loops and sounds • Hints show the first character of an answer, then where it starts • Easy, Medium and Hard answer lists, so the whole family can play • Earn up to three stars a round, and a badge for every chapter of ten rounds • Stop any time: your place in a round is saved

FAIR FOR PARENTS • The first 30 rounds are free • One purchase unlocks all 200 rounds, plus every new round added in updates • No ads, ever. No accounts, no tracking, no data collected • Purchases are behind a parental gate • Family Sharing: buy once for the whole family • Plays offline

It's real math practice (mental arithmetic, number sense, and the order of operations, with × and ÷ before + and −) disguised as a treasure hunt.

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