Headline Story
Multiplication and Large Puzzles, #3
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Introduction
Read the Headline Story to the students. Encourage them to create problems that can be solved using information from the story.
Headline Story
A certain number has 2 digits and is a multiple of 2, 3, and 5. What can you say about the number?
Possible student responses
- If it is a multiple of 2 and 5, it’s also a multiple of 10. It has 0 in the ones place.
- The smallest number it could be is 30.
- The largest number it could be is 90.
- There are 3 possibilities: 30, 60, 90.
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