Arithmetic calculators

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Absolute Change Calculator icon

Absolute Change Calculator

Use the Absolute Change Calculator to measure the difference between two values. It's free, online, and fits with My online calculators and other calculators.

Absolute Value Calculator icon

Absolute Value Calculator

Absolute Value Calculator from My online calculators: enter a number, see its distance from zero, and copy results. It's free, online, and easy.

Adding and Subtracting Fractions Calculator icon

Adding and Subtracting Fractions Calculator

Use our Adding and Subtracting Fractions Calculator to combine fractions step by step, simplify results, and check your homework in seconds.

Summation Calculator icon

Summation Calculator

Summation Calculator helps you add long series fast. Enter your terms, set the range, and get the total with clear steps you can follow.

Addition Calculator icon

Addition Calculator

Use our Addition Calculator to add whole numbers, decimals, or large sums in seconds. Enter values, check the total, and copy the result.

Associative Property Calculator icon

Associative Property Calculator

Use our Associative Property Calculator to regroup numbers step by step, check your work, and see how addition and multiplication stay the same.

Average Calculator icon

Average Calculator

Average Calculator helps you find the mean in seconds. Enter your numbers, check the steps, and copy the result for homework or work reports.

Ceiling Function Calculator icon

Ceiling Function Calculator

Ceiling Function Calculator for quick rounding up, enter a number and get the least integer greater than or equal to it, with steps shown.

Chinese Remainder Theorem Calculator icon

Chinese Remainder Theorem Calculator

Chinese Remainder Theorem Calculator that shows steps, checks your mod inputs, and gives the least solution you can trust, quickly, every time.

Compatible Numbers Calculator icon

Compatible Numbers Calculator

Use the Compatible Numbers Calculator to find number pairs that work well together, then check sums and products with clear, step-by-step help.