Free Math Calculators with Step-by-Step Working

Generate a clear place-value grid and full step-by-step working for multiplying whole numbers using the box (area) model.

Step through box-method division for 3–4 digit dividends divided by a 1-digit divisor, with each bring-down, multiply and subtract shown.

Full long-division working for whole numbers: divide, multiply, subtract and bring down at each step — great for checking homework.

Chunking division with steps: subtract friendly multiples of the divisor, add partial quotients, and see the quotient and remainder.

Add or subtract multi-digit numbers with every carry and borrow shown, column by column — the exact method taught in class.

Type a number to see it in word form, expanded form, and a digit-by-digit place-value breakdown.

Enter an expression with brackets, ×, ÷, + and − and watch it solved one step at a time in the correct order.

Round whole numbers and decimals to the nearest thousand, hundred, ten, tenth or hundredth — with the decider digit and working shown.

Find a percent of a number, what percent one number is of another, or a percentage increase or decrease — each shown step by step.

Add, subtract, multiply and divide fractions, simplify a fraction, or compare two — with common denominators, mixed numbers and decimals shown.

Add, subtract, multiply and divide decimals — lining up the point and counting places — or convert a decimal to a fraction and a percent.

Add, subtract, multiply and divide positive and negative whole numbers, with the sign rule explained at each step.