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Here's a problem that's so practical, I solved it on a piece of scrap wood in the middle of building a gate for my wooden picket fence. I used it in my intermediate algebra class and it went over really well. I have a section of pre-built picket fence that is irregularly sized (I had to cut an 8 foot panel in half to fit it in my hatchback). It is ...


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...his argument is correct but I want to teach him that $300=1\times 200+100$ and reminder is $100$. But in previous solution its reminder is $1$ ($3=1\times 2+1$). How can I explain this without fooling or tricking him? If I understood it correctly, the question is how to explain the fact that equivalent fractions leave different remainders. Well, you could ...


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Unless I'm misinterpreting the question, is this about division with remainders? I'd probably ask with "how many X are in Y?" and use composite numbers as my Y's to get lots of results For example, "How many 10's are in 60?", "how many 2's in 60?", "how many 15's in 60?" Then I'd ask, "how many 25's are in 60?&...


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