Question
Find the following values without a calculator.

  1. _____ + 11 = 46
  2. _____ + 25 = 45
  3. _____ + 72 = 98
  4. _____ + 56 = 91
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. _____ + 11 = 46
  2. _____ + 25 = 45
  3. _____ + 72 = 98
  4. _____ + 56 = 91