AQA · Mathematics · 8300
GCSE Maths: Negatives: addition/subtractions
Number · AQA GCSE Maths (8300). Cards are generated from the Corbettmaths textbook exercise and practice questions for Negatives: addition/subtractions (Corbettmaths Video 205), and every card links back to the exact page it came from. Practice tests are drawn from this deck’s own cards. Source material © Corbettmaths — used with attribution.
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What is −3 + 9?
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6
What is −3 − 2?
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−5
What is 4 + (−1)?
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3
What is −5 + (−5)?
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−10
What is 6 − (+1)?
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5
What is 1 − (−2)?
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3
What is −8 − (−3)?
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−5
What is −12 − (−30)?
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18
The temperature in Belfast was −2°C at midnight and 5°C at 9am. By how many degrees did the temperature rise?
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7°C. The rise is calculated as 5 − (−2) = 7.
If Mr Jones has −£50 in his bank account and deposits £70, how much will he now have?
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£20. Calculated as −50 + 70 = 20.
What number is 3 less than 2?
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−1
If adding 20 to a number gives a negative result, what can you say about the original number?
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The original number must be less than −20 (e.g., −21, −25, −100).
What is the correct way to calculate (−25)² on a calculator?
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Enter (−25)² using parentheses, or calculate 25² and recognize the result is positive. Without parentheses, −25² is interpreted as −(25²) = −625.
What is (−25)²?
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625. When a negative number is squared, the result is positive.
Why does −25² equal −625 rather than 625?
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Without parentheses, the exponent applies first: 25² = 625, then the negative sign is applied: −625.
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