Question
Which of the following gives a different answer from the others? Give the answer in letter. (Eg a)
  1. 490 + 210  
  2. 1357 - 657 
  3. 1738 - 1038  
  4. 256 + 342  
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. 490 + 210  
  2. 1357 - 657 
  3. 1738 - 1038  
  4. 256 + 342