Question
Find the following values without a calculator.
  1. 15 ÷ 3 x 3 + 4 - 9 = _____
  2. 18 + 20 ÷ 4 - 1 x 7 = _____
  3. 2 x 4 ÷ 1 - 4 + 5 = _____
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

Find the following values without a calculator.
  1. 15 ÷ 3 x 3 + 4 - 9 = _____
  2. 18 + 20 ÷ 4 - 1 x 7 = _____
  3. 2 x 4 ÷ 1 - 4 + 5 = _____