GB-02-02-001 · Adding and subtracting negatives
Work out .
Adding & Subtracting Negative Numbers (Touching Signs)
Application of related method — Booklet p. 27
Method
1) Touching signs rule: − − becomes + , and + − becomes −
2) Move right for + and left for − on the number line
Worked Example (GB-02-02-001)
1)
Rewrite as −4 + 18.
2)
Ans =