Question
Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
  1. 110 + 410 + 410 = _____ x 110 + 410
  2. 1019 - 219 - 519 = 619 - _____ x 119
  3. 813 + 513 - 113 = _____ x 113 - 113
  4. 158 + 28 = 18 x _____ + 28
3 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, 4)
  1. 110 + 410 + 410 = _____ x 110 + 410
  2. 1019 - 219 - 519 = 619 - _____ x 119
  3. 813 + 513 - 113 = _____ x 113 - 113
  4. 158 + 28 = 18 x _____ + 28