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Tag Archives: infinite geometric series
Geometric Series to the Rescue!
On a recent road trip, the driver asked me to compute the car’s mileage per gallon. She handed me a little notebook with odometer readings and gasoline gallons at each fillerup. I guess when you run a math club for … Continue reading
Posted in math, Math Education
Tagged computation, gas mileage, infinite geometric series, mental computation
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Does 0.999… Really Equal 1?
One of the most oftasked questions in K12 math is: Does zero point nine repeating really equal one? Here’s the short answer: Yes! And here’s a longer answer,
Posted in math, Math Education
Tagged 0.9 repeating, decimals, infinite geometric series, limits
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