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Summary Table

Topic: Numbers

Number Type Includes Examples
Natural (ℕ) 1, 2, 3, ... 5, 27
Whole 0 + Natural 0, 3, 15
Integers (ℤ) Positive & Negative -5, 0, 4
Rational (ℚ) Fractions, decimals ½, 0.75, -3
Irrational Non-repeating decimals √2, π
Real (ℝ) Rational + Irrational All above
Complex a + bi 3 + 2i

Numbers

Basic Mathematics

 What are Numbers? Types of Numbers Number Line Place Value and Face Value Even and Odd Numbers Prime and Composite Numbers Factors and Multiples HCF and LCM Roman Numerals Properties of Numbers Number Patterns and Sequences Sign Rules (Positive and Negative Numbers) Divisibility Rules (Quick Checks) Scientific Notation Surds Summary Table