Problem 1 answer key
The Museum Display
Grade 3 · Number and operations
MJ 3.3 · C2 · W2
Standard challenge · Moderate workload
About 4–11 minutes
The Museum Display — answer
Problem ID: 1
- Six cases with four rubies each:
6 × 4 = 24 - Two groups of three sapphires:
2 × 3 = 6 - Remove five jewels:
24 + 6 − 5 = 25
Answer: 25 jewels remain.