Lower Elementary:
Question: Alice the librarian has a cart of 3 dozen books to put back on the shelves. She puts 3 of them away before she's startled by a ghost and runs away. How many books does Alice leave on her cart?
Answer: 33 books
Solution: since a dozen is 12, Alice starts with 12 + 12 + 12 = 36 books. After she shelves 3 of them, there are 36 - 3 = 33 books left on the cart.
Mathnasium of West Covina is a math-only learning center for K-12 students in West Covina, CA. Trusted by over a million parents, Mathnasium uses personalized learning plans and the proprietary Mathnasium Method™ to help students catch up, keep up, and get ahead on their math journey.
Our specially trained tutors deliver face-to-face instruction in a supportive and fun small-group environment, working with students to develop a deep understanding of math, build confidence, and improve academic performance.
Schedule Assessment