Reverse Math Puzzle

Reverse Math

Contains adsIn-app purchases

About this game

Fill the blanks. Hit the target.

_ × _ − _ + _ = 37
Numbers: 5, 7, 11, 13

Place each number once so the equation comes out right, with real math rules (× and ÷ before + and −). Quick to learn, hard to put down. Free to play, no sign-up.

A NEW PUZZLE EVERY DAY
The Daily: 5 puzzles, 4 minutes, the same for everyone. Finish it to keep your streak, earn coins and see where you rank on today's leaderboard.

BATTLE YOUR FRIENDS
Start a battle in the app and send a friend the code. They can join in the app or right in the browser. Everyone gets the same puzzles and 2 minutes to solve as many as they can. Climb the board, turn on alerts to hear when someone beats you, and ask for a rematch.

HOW IT PLAYS
• See a target number and an equation with blanks
• Tap or drag a number into each blank, using each one once
• Real math rules: × and ÷ come before + and −
• Think before you tap: a wrong answer costs you a few seconds

MORE WAYS TO PLAY
• Classic: solve as many as you can before the clock runs out
• Time Attack: 10 puzzles against the clock
• Four levels, from Novice to Genius

SHARE WITHOUT SPOILERS
Show your result as a row of squares, with your time and streak. Nobody sees the answers.

HELP WHEN YOU NEED IT
Stuck in practice? Spend coins on a hint, skip a tough puzzle or add 30 seconds. Undo a move any time.

MADE FOR QUICK BREAKS
• No account or sign-up needed
• Light and dark mode
• A daily reminder so you never miss a day

Perfect for fans of math games, number puzzles, logic puzzles and brain teasers. Challenge a friend today.

What’s new

• Battles: send a friend a code and race the same puzzles for 2 minutes
• Today's leaderboard for the Daily
• New here? A quick intro shows you how to play
• Get your Daily reminder and know when a friend beats you
• A wrong answer costs a few seconds in timed games
• Cleaner look, clearer results and many fixes