Question
Find the following values without a calculator.
  1. 97 + 70 = _____
  2. 36 + 86 = _____
  3. 80 + 85 = _____
  4. 50 + 39 = _____
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. 97 + 70 = _____
  2. 36 + 86 = _____
  3. 80 + 85 = _____
  4. 50 + 39 = _____