How to Solve
Question: Amy and Judy sold 12 show tickets altogether. Amy sold 2 more tickets than Judy. How many tickets did each girl sell?
Strategy:
1) UNDERSTAND:
What do you need to find?
You need to know that 12 tickets were sold in all. You also need to know that Amy sold 2 more tickets than Judy.
2) PLAN:
How can you solve the problem?
You can guess and check to find two numbers with a sum of 12 and a difference of 2. If your first guess does not work, try two different numbers.
3) SOLVE:
First Guess:
Amy = 8 tickets
Judy = 4 tickets
Check
8 + 4 = 12
8 – 4 = 4 ( Amy sold 4 more tickets)
These numbers do not work!
Second Guess:
Amy = 7 tickets
Judy = 5 tickets
Check
7 + 5 = 12
7- 5 = 2 ( Amy sold 2 more tickets)
These numbers do work!
Amy sold 7 tickets and Judy sold 5 tickets.
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