SUM+SUM is a mathematical logic puzzle where you select numbers to match target sums around the grid. Mark tiles to keep, flag unwanted values for removal, and reset cells when you need to change a decision. Every row and column must reach the correct total at the same time. Complete levels to earn gold, open loot crates, and use hints during harder puzzles. Play the SUM+SUM game at Y8 now.
What makes SUM+SUM fun to play?
The fun comes from balancing several sums at once and discovering which numbers belong in the final solution. Each correct choice can help both a row and a column move closer to completion.
What do we actually do in SUM+SUM?
You select number tiles, mark some for removal, and compare the results with the target totals. You can also reset cells, use hints, and spend gold on helpful tools.
Can we play SUM+SUM on mobile?
Yes, SUM+SUM can be played on mobile devices as well as on desktop computers. It runs directly in the browser and does not require any downloads.
Is SUM+SUM free to play?
Yes, SUM+SUM is free to play on Y8 and runs directly in your browser.
