Question
Which of the following give the same answer? Give the answers in letters. (Eg a, b)
  1. 10 + 9
  2. 13 - 6
  3. 11 - 4
  4. 13 + 13
3 m

Click button first when a symbol is required. X

Which of the following give the same answer? Give the answers in letters. (Eg a, b)
  1. 10 + 9
  2. 13 - 6
  3. 11 - 4
  4. 13 + 13