Question
Which of the following gives a different answer from the others? Give the answer in letter. (Eg a)
  1. 487 + 121 
  2. 918 - 688 
  3. 1547 - 939 
  4. 293 + 315
2 m

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Which of the following gives a different answer from the others? Give the answer in letter. (Eg a)
  1. 487 + 121 
  2. 918 - 688 
  3. 1547 - 939 
  4. 293 + 315