Add 20 to any whole number. Multiply by 10. Find 20% of this result. Find 50% of your last result. Subtract the whole number you started with. What is your result? Repeat. Did you get similar results? Why does this procedure always lead to a certain result?
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InterMath
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- AddressKaput Center for Research & Innovation in STEM Education
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Fairhaven, MA 02719