Headline Story
Factoring and Prime Numbers, #1
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Introduction
Read the Headline Story to the students. Encourage students to think about the size of this number and what its factors are.
Headline Story
There are many mathematical properties of a number. What are some such properties of 425?
Possible student responses
- It is odd.
- It is a 3-digit number.
- It is a multiple of 5.
- It is also a multiple of 25.
- It means 400+ 20 + 5.
- It could have the addends 400 and 25 or 499 and 26.
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