mr.hobe

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3. Square roots of really large numbers

Perhaps the problem may be that we live in Canada where the level of math required for grade 8 students is higher than where you may be currently residing. The text book is published by Nelson call...

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That was an interesting link, however simplifying a 2 digit root is not really helpful when the number is in the millions and calculators are not allowed to be used. 

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This problem is at a grade 8 level, triganomity is mot taught till high school. Just wish I could see a video where this is explained in detail.

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3. Square roots of really large numbers

Yes I understand. The problem being is the part in the question that says "show your work". I would have to say calculators are not allowed in the test.