what is the answer if you round 18.3474793909136194 to 4 significant figures?
+23254 To round to 4 significant places, you will round to the fourth digit from the left (except as shown below)
look at the fifth digit from the left, if it is 5 or larger, round the fourth digit up one; if it is 4 or less, don't change the fourth digit. Since it is a 7 round the fourth digit to 5.
Answer: 18.35
The above rule will not work if the number is less than 1; that is, if it only a decimal.
For instance, if the number were 0.0018347, then you round to the fourth digit from the first non-zero number, giving an answer of 0.001835. (If the number starts with zeros, don't count those zeros.)
+23254 To round to 4 significant places, you will round to the fourth digit from the left (except as shown below)
look at the fifth digit from the left, if it is 5 or larger, round the fourth digit up one; if it is 4 or less, don't change the fourth digit. Since it is a 7 round the fourth digit to 5.
Answer: 18.35
The above rule will not work if the number is less than 1; that is, if it only a decimal.
For instance, if the number were 0.0018347, then you round to the fourth digit from the first non-zero number, giving an answer of 0.001835. (If the number starts with zeros, don't count those zeros.)
