B. The Grade 4 pupils of Mrs. Alma took their lunch right after their class at 11:45 a.m. If they finished eating at 12:30 p.m., how long did they take their lunch? 1. What is asked? 2. What the given facts? 3. What operation is needed? 4. What is the number sentence? 5. How is the solution done? 6. What is the answer?