Print and separate each problem strip by the riddle number. (I like to print each riddle in a different color, laminate, and separate into different baggies.) Then, print off an answer sheet for each student. There are four riddles for the students to solve. By answering each of the questions correctly, they will earn one letter to answer the riddle. At the end, they will unscramble their letters to solve the riddle.
Riddle #1: Volume of Rectangular Prism (fractions and decimals included)
Riddle #2: Solve for a Dimension of Rectangular Prism
Riddle #3: Volume and Surface Area Word Problems
Riddle #4: Surface Area of Prisms and Pyramids
I altered this activity from a lesson plan I saw being used from Miss 5th! Thanks for sharing your ideas! :)