Play Addition Brain Teaser Online Free

About This Game

Sharpen mental arithmetic in this clever addition puzzle. Clear every number off the board by merging them under strict rules: you may only join two equal numbers, or two numbers whose sum already exists somewhere on it. Pair 3 with 3 freely, but 5 and 2 only merge when a 7 sits on the board. Drag one number onto another to attempt a match, and plan the entire sequence before your options dry up. A sharp, satisfying challenge for math lovers, students, and logic fans.

How to Play

Read the numbers spread across the board and decide which pair to merge first. Click a number, drag it onto another, and drop it to attempt an addition. Equal numbers always combine, and pairs whose sum appears on the board are also valid, while illegal drops simply bounce back. Empty the entire board of numbers to win the round.