Question
Which of the following give the same answer? Give the answers in letters. (Eg a, b)
  1. 2 + 7
  2. 15 - 9
  3. 15 - 6
  4. 10 + 10
3 m

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Which of the following give the same answer? Give the answers in letters. (Eg a, b)
  1. 2 + 7
  2. 15 - 9
  3. 15 - 6
  4. 10 + 10