Help students practice using parentheses and the order of operations (PEMDAS or BEDMAS) by solving a calculator crossword puzzle! When the puzzle is flipped, it reveals hidden messages behind the words (as many of us have done with calculators, where 0.7734 flipped says "hELLO"!).Each clue contains a combination of addition, multiplication, subtraction, division, and/or parentheses and is full of opportunities for students to recognize shortcuts by identifying patterns. While multi-digit multipl