Compare Crunch
The hungry gator always eats the bigger number
About Compare Crunch
Greater than, less than, equal to — with a gator whose mouth swings toward whichever side is bigger. Grows from single digits to fractions, decimals and whole expressions.
Ankhdase tracks 5 distinct skills in Compare Crunch, including Comparing numbers, Comparing expressions, Comparing fractions and Decimals. Because mastery is estimated per skill rather than per game, the questions shift toward whatever a student is getting wrong — and away from what they have already proved they know.
There are 5 modes to choose from: Whole numbers, Expressions, Fractions, Decimals and Mixed.
How to play
- Two values appear. Choose <, = or > for the middle.
- The gator is greedy: its mouth always opens toward the bigger number.
- Expression mode makes you work out both sides before you can compare them.
- You can press 1, 2 or 3 instead of tapping.
Skills Compare Crunch practices
- Comparing numbers
- Comparing expressions
- Comparing fractions
- Decimals
- Negative numbers
Mastery is estimated separately for each of these, which is what lets the difficulty move independently — a student can be fluent on one and still be fed easier questions on another.
Questions about Compare Crunch
- Is Compare Crunch free to play?
- Yes. Compare Crunch is free, runs in any modern browser, and needs no download or plugin. You can play straight away without an account; signing in is only needed if you want progress, streaks and badges saved.
- What age is Compare Crunch for?
- Compare Crunch suits ages 5–12 — roughly Kinder to Grade 6. The difficulty adapts as you play, so it stays useful across that whole range rather than being pitched at one year group.
- What does Compare Crunch teach?
- It practices Comparing numbers, Comparing expressions, Comparing fractions, Decimals and Negative numbers. Every question is tagged with the skill it exercises, so progress is tracked skill by skill rather than as one overall score.
- Does Compare Crunch work on a tablet or phone?
- Yes. Compare Crunch works with touch as well as a mouse, and every drag action has a tap-to-select alternative. Once the page has loaded once it also keeps working offline.
- Can teachers assign Compare Crunch?
- Yes. Teachers can create a class, add students in bulk without email addresses, and set Compare Crunch as an assignment with a goal — a score, a number of minutes, stars or a typing speed. Progress updates automatically as students play.