A teacher has 50 books. She gives 9 books to each of 5 students. How many books does she have left?

Step-by-step solution

1. Calculate total books given: $9\times 5=45$.
2. Subtract from original books: $50-45=5$.
3. Answer is $5$.
4. Concept: Subtract total given
5. Common_mistake: Not calculating the total books given before subtracting.

Concept tested: Subtract total given

Published 16 October 2026 · How this solution was prepared and checked