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Well, when we round 99.9 to 2 significant figures, it becomes 100. Remember, we look at the digit after the second significant figure to determine if we round up or keep the number as it is. Just like adding a happy little tree to a painting, rounding can help simplify numbers and make them easier to work with.
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Earn +20 ptsQ: What is 99.9 rounded to 2 significant figures?
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