sets are a useful way of grouping mathematical items together.

three sets of numbers you have to be familiar with are the sets of natural numbers, whole numbers and integers.

integers are the set of whole numbers which includes the negatives, the positives and zero.

other sets of numbers include rational, irrational and real numbers.

Key Skills

show numbers from the set of integers on a number line.

do calculations with integers:

  • addition and subtraction
  • multiplication and division


whole numbers.