1. **State the problem:** A grocery store had 2,418 boxes of cereal on Monday. By Friday, customers had bought 1,146 boxes. The remaining boxes were organized on 24 shelves evenly. We need to find how many cereal boxes are on each shelf. 2. **Identify the key information:** - Total boxes on Monday: $2418$ - Boxes bought by Friday: $1146$ - Number of shelves: $24$ 3. **Formulate the problem mathematically:** - First, find the remaining boxes after some were bought: $$2418 - 1146$$ - Then, divide the remaining boxes evenly among 24 shelves: $$\frac{2418 - 1146}{24}$$ 4. **Check the answer choices:** - A: $(2418 - 1146) \div 24$ (matches our formula) - B: $(2418 + 1146) - 24$ (incorrect operation) - C: $(24 \times 1146) + 2418$ (incorrect operation) - D: $(2418 \div 24) + 1146$ (incorrect operation) 5. **Conclusion:** The correct number sentence is choice A. **Final answer:** A