WEBVTT
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The winner of the 2007 Indianapolis 500, Dario Franchitti, had an average speed of 151.774 miles per hour.
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Round 151.774 miles per hour to the nearest ten miles per hour.
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We’ve been given this number 151.774 and we need to round it to the nearest 10 miles per hour.
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Rounding something to the nearest 10 miles per hour means we need to round to the nearest tenth place.
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The nearest tenth place is here.
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In order for us to round to the tenth place, we need to look one digit to the right — to the units place.
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To the right of our tenth place is a one.
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If this digit is four or smaller, in our case a one, then we round down and our number in the tenth place stays the same.
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Our five in the tenth place will stay the same and everything after that becomes a zero like this.
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Dario Franchitti averaged 150 miles per hour when you round his average speed to the nearest 10 miles per hour.