Math calculators

Add, subtract, multiply, or divide fractions and see the reduction steps.

• How do I combine two fractions?
• What is the simplified form?

Summarize a dataset with mean, median, mode, range, and standard deviation.

• What is the center of this dataset?
• How spread out are the values?

Calculate the area of common 2D shapes and see the applicable perimeter or circumference.

• What is the area of this shape?
• What formula should I use for a circle or triangle?

Calculate volume for common solids with a clear formula and surface-area context where available.

• How much space does this solid contain?
• What is the volume of a sphere, cone, or prism?

Find an exact or approximate square root, bracket non-perfect squares, and understand negative inputs.

• What is the square root of a number?
• Is this number a perfect square?

Calculate powers with positive, zero, negative, and fractional exponents, including readable notation.

• What is a number raised to a power?
• How does a negative exponent work?

Add and subtract up to four polynomials, combine like powers, and keep the operation visible.

• How do I combine polynomial terms?
• What is the simplified polynomial?

Check whether a whole number is prime, list its factors, and show nearby prime numbers.

• Is this number prime?
• What are the factors and prime factorization?

Find the least common multiple and greatest common factor for two or more whole numbers.

• What is the GCF of these numbers?
• What is the smallest common multiple?

Solve a transparent one-variable linear equation and verify the result step by step.

• What is x in this equation?
• How can I verify a linear equation solution?

Compare two values or apply a percentage change without losing the absolute difference.

• How much did this grow or fall?
• What value comes after a percentage change?