Question
Find the following values without a calculator.
  1. 82 + 71 = _____
  2. 85 + 24 = _____
  3. 12 + 27 = _____
  4. 50 + 92 = _____
3 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. 82 + 71 = _____
  2. 85 + 24 = _____
  3. 12 + 27 = _____
  4. 50 + 92 = _____