Question
Find the following values without a calculator.

  1. 99 - 6 = _____
  2. 85 - 2 = _____
  3. 82 - 12 = _____
  4. 76 - 15 = _____
4 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

(c)

Click button first when a symbol is required. X

(d)

Click button first when a symbol is required. X

Find the following values without a calculator.

  1. 99 - 6 = _____
  2. 85 - 2 = _____
  3. 82 - 12 = _____
  4. 76 - 15 = _____