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

  1. 18 = ?16
  2. 23 = 6?
  3. 1618 = ?9
  4. 621 = 8?
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. 18 = ?16
  2. 23 = 6?
  3. 1618 = ?9
  4. 621 = 8?