Make five number cards for the five odd digits:

Put the five number cards in this addition problem. Use all the cards, each card once.

1. What is the greatest possible sum?
   What is the least possible sum?

2. Can you get a sum between 500 and 600?
   Can you get a sum between 800 and 900?

3. Can you get a sum of 448?
   Can you get a sum of 615?

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