Free math worksheets, calculators and unit conversions

Printable math worksheets

Addition, subtraction, multiplication, division and fractions, each at several levels. Every worksheet is generated fresh with 10 to 40 problems and an answer key on its own page, so you can print a different sheet for every lesson or every child.

Calculators that show the method

Percentages, percentage change, fractions to decimals and factorials. Each answer comes with the steps, the result in other forms (decimal, fraction, ratio), the spreadsheet formula and practice questions, so the method can be learned and checked.

Unit conversions with worked steps

63 units of length, mass, volume, area, time, speed, data and temperature, converted from exact definitions, with a conversion table and the formula for both directions.

Times tables and spelling lists

Times tables from 1 to 100 with patterns that make them easier to remember and a practice sheet for each, plus 119 spelling lists grouped by phonics pattern and level.

Popular calculations

• 15% of 80
• 20% of 50
• 20 is what percent of 80
• 45 out of 60 as a percentage
• percentage change from 40 to 50
• 1/3 as a decimal
• 5/8 as a decimal
• 7 times table

How it works

Every page is calculated when you open it, from the numbers in its address, so there are no tables copied from elsewhere and no rounding mistakes carried over. A calculator page shows the answer first, then the method step by step, a quicker way to do it in your head and a check you can do backwards. Worksheets use a new set of numbers each time you ask for one, and the answer key is worked out by the same program.

For teachers, parents and students

Teachers can print a different worksheet for each group or each day without photocopying the same sheet. Parents get answer keys and a worked example for every level, so homework help does not depend on remembering how a method was taught. Students can check an answer and see exactly where a calculation went wrong. Nothing needs an account, and every page prints cleanly without the menus and ads.