Worked Example 3: Double Negative

Part of Negative Numbers · Section 8 of 14

Study NotesUnit: NumberGCSE

This study notes covers Worked Example 3: Double Negative within Negative Numbers for GCSE Mathematics. Revise Negative Numbers in Number for GCSE Mathematics with 12 exam-style questions and 22 flashcards. Use this page as part of a wider topic revision path rather than treating it as an isolated fact. It is section 8 of 14 in this topic. Use this study notes to connect the idea to the wider topic before moving on to questions and flashcards.

Worked Example 3: Double Negative

Calculate: 7 − (−3)

Solution

Subtracting a negative = adding the positive

7 − (−3) = 7 + 3

= 10

Remember: Two minuses make a plus!

Practice questions for Negative Numbers

Which of these statements is true?

A. -8 > -3
B. -3 > -8
C. -3 < -8
D. -8 = -3

1 markfoundation

Aisha's bank account shows a balance of -45 pounds. She deposits 70 pounds. Explain what her new balance is and what the negative sign meant originally.

2 marksstandard

Quick recall flashcards

Double Negative Rule

Subtracting a negative = Adding. Two minuses make a plus: 5 − (−3) = 5 + 3 = 8

Using a number line

Draw a horizontal line with 0 in the middle. Negative numbers go LEFT, positive RIGHT. Moving right = adding, moving left = subtracting.

Worked Example 2: Multiplication

Worked Example 4: Real World Problem

12 questions on Negative Numbers — practise free

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