Bigger, smaller or the same? Decide instantly.
Mind Sharpness Speed & Reflex Games Maths Games for Kids (6-10) Brain Games for Seniors
Two values, one decision: is the left one greater, smaller, or equal? The values are deliberately written in different forms — a fraction against a decimal, a percentage against a fraction — so the comparison is never a matter of just reading the digits.
Comparing across representations is a specific weak spot. Plenty of people who can convert 3/8 to 0.375 on paper still hesitate when asked whether 3/8 beats 0.4 under time pressure.
This version: Straight number comparison. Your best score is saved in this browser, so you can come back and try to beat it. Nothing is uploaded and no sign-up is needed.
Because the brain wants to compare surface features. 3/8 has bigger digits than 0.4 and looks larger. Overriding that instinct is the skill.
Convert both to decimals, or cross-multiply the fractions. Cross-multiplication is faster once it becomes automatic.
They appear in roughly one round in five, which is often enough that you cannot ignore the possibility.