Everyday math, made clear

Percentages without the head-scratching.

Work out discounts, changes, tips, and more with quick answers that explain the math as you go.

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What is Y% of a number?

of
Answer16

20% × 80 = 16

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Know what the number actually means.

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Clear, free, and deliberately uncomplicated.

Clear Math Kit is designed around helpful tools and original explanations. We keep the experience calm, label ad space clearly, and never ask you to create an account for a basic calculation.