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OpenStudy (anonymous):
How do you estimate using compatible numbers at 5th grade level
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OpenStudy (anonymous):
What?
OpenStudy (anonymous):
they're basically 'scary' looking numbers rounded to the nearest 'friendly' number.. like if you have to multiply 242 * 397 then you round 200*400 to get a rough estimate of what the initial question.
OpenStudy (anonymous):
so for fifth graders, maybe print out like a 'scary number' on paper surrounded by a playful monster or something.. and the friendly number would be associated with something friendly.. like a smile :)
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