Question
Find the following values without a calculator.

  1. _____ + 16 = 46
  2. _____ + 8 = 42
  3. _____ + 45 = 91
  4. _____ + 80 = 106
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. _____ + 16 = 46
  2. _____ + 8 = 42
  3. _____ + 45 = 91
  4. _____ + 80 = 106