4.5.1. Number systems
To meet this assessment requirement, you should:
To meet this assessment requirement, you should:
Be familiar with the concept of a natural number and the set ℕ of natural numbers (including zero).
Be familiar with the concept of an integer and the set ℤ of integers.
Be familiar with the concept of a rational number and the set ℚ of rational numbers, and that this set includes the integers.
Be familiar with the concept of an irrational number.
Be familiar with the concept of a real number and the set ℝ of real numbers, which includes the natural numbers, the rational numbers and the irrational numbers.
Be familiar with the concept of ordinal numbers and their use to describe the numerical positions of objects.
Be familiar with the use of natural numbers for counting
Be familiar with the use of real numbers for measurement.