Question
Find the following values without a calculator.
Give your answers in this manner. (Eg 122334, 45)
  1. 57 + _____ = 1
  2. 720 + _____ = 1
  3. 712 + _____ = 1112
  4. 2311 + 4211 = _____
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 122334, 45)
  1. 57 + _____ = 1
  2. 720 + _____ = 1
  3. 712 + _____ = 1112
  4. 2311 + 4211 = _____