The free missing-operator math puzzle game. Octo lost the signs: help put them back!
How to play Signify
Every puzzle shows numbers and a target. Place the + − × ÷ signs from your pouch into the gaps so the equation equals the target. Remember the order of operations: brackets ( ) first, then × and ÷, then + and −. Tap a placed sign to take it back, use a hint if you are stuck (it costs a star), and watch the silent timer to beat your own speed.
300 levels, 12 worlds, endless puzzles
Signify is a free brain-training game. Start in Warm-up Cove with two gaps and climb through bracket puzzles, six-gap monsters and no-pouch boss levels. After level 300 the Endless Abyss never stops, and a new Daily 5 appears every day for you and your friends.
Frequently asked questions
What is a missing operator puzzle?
It is an equation where the signs are hidden. You choose the signs so the left side equals the number on the right.
How do I solve missing operator puzzles?
Use the order of operations: brackets first, then × and ÷, then + and −. Look at the target and ask which big jump (usually ×) could reach it.
Is Signify free?
Yes. No account, no ads, works on phones and computers. Progress is saved in your browser.
How many levels are there?
300 levels across 12 worlds with boss levels, then an endless mode, plus a Daily 5.