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1. By how much is the value of {-10 - (-7)} greater than the value of {-10 + (-7)}?

  • A. -20
  • B. -20
  • C. -20
  • D. -20

Answer: Option D

Explanation:

 Difference = { - 10 - ( - 7)} - { - 10 + ( - 7)} = - 10 + 7 - ( - 10 - 7) = - 10 + 7 + 10 + 7 = 14

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