Question
Find the following values without a calculator.
  1. - 20 - 12 = _______
  2. - 15 + 17 = _______
  3. - 18 + 13 = _______
  4. - 12 - 20 = _______
1 m

Click button first when a symbol is required. X

Find the following values without a calculator.
  1. - 20 - 12 = _______
  2. - 15 + 17 = _______
  3. - 18 + 13 = _______
  4. - 12 - 20 = _______