1. Lesson 6-5 Example 3 6-5 Solve. FARMS Farmer Brown raises chickens to produce eggs. Last month his chickens laid 3,072 eggs. If Farmer Brown sold the eggs per dozen, how many cartons of eggs did he sell? UnderstandRead the problem. Write what you know. The chickens laid 3,072 eggs. Farmer Brown sold the eggs by the dozen.

2. Lesson 6-5 Example 3 6-5 PlanPick a strategy. One strategy is to use logical reasoning.

3. Lesson 6-5 Example 3 6-5 SolveA dozen means 12. The eggs were sold in cartons of 12. For every 12 eggs, the farmer sold 1 carton. This is a problem about equal grouping, which means it is a division problem. Divide the total number of eggs by 12. 3,072 ÷ 12 = 256 The farmer sold 256 cartons.

4. Lesson 6-5 Example 3 6-5 CheckYou can check your answer by looking at the related multiplication fact.