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Category 07 of 12 · Step-by-step working

Math Calculators

Our math calculators show their working. Round numbers to any place, measure percent error, simplify square and cube roots, find the midpoint of a segment, divide polynomials with synthetic division, solve linear systems with Cramer's rule and decompose a matrix with SVD.

Use them to check homework, revise for exams or speed up calculations at work – every page explains the method so you can do it by hand too.

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Hand writing formulas in chalk on a blackboard
Desk calculator and pen on white paper
Every step shownFormula + intermediate steps

01Arithmetic and numbers

Rounding, errors and roots. · 3 live

Live

Rounding Calculator

Round any number to decimal places, significant figures or the nearest 10, 100 or 1,000.

Live

Radical Calculator

Simplify square roots, cube roots and nth roots to simplest radical form with steps.

02Algebra and geometry

Polynomials, linear systems and coordinates. · 3 live

Live

Midpoint Calculator

Find the midpoint between two points with steps, using M = ((x₁ + x₂)/2, (y₁ + y₂)/2).

03Linear algebra

Matrix factorisations. · 1 live

Quick guide

Which calculator do I need?

Match what you’re trying to do with the right tool.

If you’re…Rounding answers or measurements
UseRounding Calculator
If you’re…Comparing a measured value with the true value
UsePercent Error Calculator
If you’re…Simplifying √72 or ∛54
UseRadical Calculator
If you’re…Dividing a polynomial by (x − c)
UseSynthetic Division Calculator
If you’re…Solving 2×2 or 3×3 systems
UseCramer's Rule Calculator
If you’re…Coordinates halfway between two points
UseMidpoint Calculator

How we build and check these calculators

Every calculator on Tuff Search shows the formula or method it uses, a worked example and its limits, and lists its sources where facts matter. Health, money and legal-rule pages are checked against official or peer-reviewed sources and dated. Read how we build and review calculators in our Editorial Policy.

FAQ

Frequently asked questions

Short answers about the math calculators.

Need a calculator we don’t have?

We add new calculators regularly. Email suggestions@tuffsearch.com with the calculation you need.

New calculator ideassuggestions@tuffsearch.com

Yes. Each calculator shows the working or the formula used, along with a worked example on the page.

Yes – use them to check your answers and learn the method. Most teachers expect the working, which each page explains.

Yes, where it makes sense – for example negative coordinates in the Midpoint Calculator and negative radicands with odd roots in the Radical Calculator.

In Statistics Calculators – for example the Normal Distribution and Binomial Distribution calculators.

Keep exploring

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