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Question 59

What is the value of 7 - (-6) - 20?

  1. -7Bonne réponse
  2. -19
  3. 7
  4. 19

Explication

The double sign turns the opening subtraction into an addition, lifting seven to thirteen, and removing twenty from that drops the total seven steps below zero. Reading the double sign as a single minus gives 7 - 6 - 20 and lands twelve steps lower still.

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Question 59: What is the value of 7 - (-6) - 20? · Integers and Negative Numbers · Questena