Question
Find the following values without a calculator.
  1. - 18 - 12 = _______
  2. - 16 + 20 = _______
  3. - 19 + 13 = _______
  4. - 12 - 12 = _______
1 m

Click button first when a symbol is required. X

Find the following values without a calculator.
  1. - 18 - 12 = _______
  2. - 16 + 20 = _______
  3. - 19 + 13 = _______
  4. - 12 - 12 = _______