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Worksheet 1.6 Signed Numbers - Macquarie University

numbers to the counting numbers we end up with the set of integers represented by Z. The set of real numbers R includes positive and negative integers, fractions and irrational numbers. If my cheque account was in credit $30 I could say that the balance was +$30. If it was overdrawn $30 the balance would be -$30. Temperatures are measured in ...