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It depends how many significant figures you are after. 23.1 + 2.06 = 25.16
Significant figures is like rounding.
If I were to round it to 3 sig. fig. I would have 25.2
If I were to round it to 2 sig. fig. I would have 25
and so on. You only keep the numbers which keep the number similar to the original yet less accurate with less digits.
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Earn +20 ptsQ: What is the answer of 23.1 plus 2.06 in significant figures?
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