Question
Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)

  1. 13 = ?21
  2. 67 = 18?
  3. 49 = 818 = ?36
  4. 16 = 212 = 3?
2 m

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Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)

  1. 13 = ?21
  2. 67 = 18?
  3. 49 = 818 = ?36
  4. 16 = 212 = 3?