Mission to the Moon: Order of Operations with Exponents Worksheet. Students simplify expressions using order of operations to reveal facts about the Artemis II Orion spacecraft.There are 15 facts across two pages to reveal, and problems include only positive whole numbers – addition, subtraction, multiplication, division, exponents, and parenthesis.(Additional option) You can also use it for customary to metric unit conversion, just ask students to convert: Fahrenheit to Celsius, feet to met