Halloween Math: Add, Subtract, & Order Decimals ~ Crack the Code! is a fun and engaging way for students (grades 5-7) to get computation practice. They’ll enjoy the challenge and feedback is immediate by solving the puzzle (a quote from MacBeth) correctly. This Crack the Code puzzle has three parts. First, students must successfully solve the addition & subtraction problems. Next, they must place their answers in order from greatest to least, thus making the alphabet a number line from A (