This product is aligned with the 3rd grade Engage NY/Eureka math beginning of the year modules. It features basic multiplication, division with the use of a visual array to aid the students, measurement (longer/shorter with visuals), 3-digit subtraction (with and without regrouping), and rounding to the nearest 10 (a number line included for each problem if needed). This math mystery includes a brief description that tells children that someone has stolen Santa's sleigh, a suspect list featuring characters that children will recognize from movies/books, and five pages of clues that make them solve math problems in a fun review way. At the end, students will use the clues to narrow down the suspect list to find out who stole Santa's sleigh!