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

  1. 3 + _____ = 20
  2. 17 + _____ = 20
  3. 4 + _____ = 20
2 m

Click button first when a symbol is required. X

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

  1. 3 + _____ = 20
  2. 17 + _____ = 20
  3. 4 + _____ = 20