Maths & numbers

Everyday percentages, sequences and the numbers in between.

Showing 1–13 of 13 tools

Find a percentage of an amount in one step.

Measure an increase or decrease from an original value.

Find what percentage one number is of another.

Recover the original value before a percentage increase or decrease.

Raise a number to a selected exponent.

Find the non-negative square root of a number.

Find the real cube root of a positive or negative number.

Find the exponent needed to reach a number from a base.

Multiply a whole number by all positive integers below it.

Find the largest positive integer that divides both numbers.

Find the smallest non-negative common multiple of two integers.

Find the nth term and sum of a sequence with a fixed difference.

Find the nth term and sum when each term multiplies by a fixed ratio.