0.813 is your answer because 7 is higher than 5 which means you have to round it up and not down
0.813 is the number rounded to three decimal places
To round 0.8127 to three decimal places, we look at the digit in the fourth decimal place, which is 7. Since 7 is greater than 5, we round the digit in the third place (2) up to 3. Thus, 0.8127 rounded to three decimal places is 0.813.
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