Question
Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
  1. 310 + 410 + 110 = _____ x 110 + 410
  2. 1022 - 422 - 322 = 722 - _____ x 122
  3. 913 + 413 - 113 = _____ x 113 - 113
  4. 1213 + 313 = 113 x _____ + 313
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. 310 + 410 + 110 = _____ x 110 + 410
  2. 1022 - 422 - 322 = 722 - _____ x 122
  3. 913 + 413 - 113 = _____ x 113 - 113
  4. 1213 + 313 = 113 x _____ + 313