Larger dividend gives larger quotient
There are crackers and candies. The crackers and the candies are each shared equally among children. How many more candies than crackers does each child get?
Show solution
Understand
There are 20 crackers and 28 candies. Each type is shared equally among 4 children. I need to find how many more candies than crackers each child gets.
- There are 20 crackers.
- There are 28 candies.
- Each kind of treat is shared equally among 4 children.
- The difference between candies per child and crackers per child.
- Both the crackers and the candies are divided equally with none left over.
- The number of children (4) is the same for both shares.
Plan
#7 Identify Subproblems · also uses: #8 Analyze the Units
Find each child's share of crackers and of candies as two separate division subproblems, then compare them. Because the same 4 children share both, the larger total (candies) must give the larger per-child amount, so the final step is a simple subtraction of the two shares.
Execute
Review
Each child gets 5 crackers and 7 candies; 7 is indeed 2 more than 5. Checking totals: 5 times 4 is 20 crackers and 7 times 4 is 28 candies, both correct. The larger pile (candies) gives the larger share, as expected.
Use the difference first (tool 11/15 idea): there are 28 - 20 = 8 more candies than crackers in all, and those 8 extra are shared among 4 children, so 8 divided by 4 is 2 extra candies per child.
Standards · min grade 3
3.OA.A.2Interpret whole-number quotients of whole numbers — Dividing each total equally among 4 children to find each child's share.3.OA.A.3Solve multiplication and division word problems within 100 — Comparing the two shares to answer the how-many-more question.