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Question

Find the value of  (-7) + (+4) + (-2).
  1. 5
  2. -5
  3. -3
  4. 3


Solution

The correct option is B -5
 = (-7) + (+4) + (-2)

 = (-7) + (-2) + (+4) [ Grouping numbers with same signs]
 =  -7 - 2 + 4
 = -4 - 3 - 2 + 4      [forming pairs]
 = -3 - 2
 = -5

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