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When you've finished operating on your numbers to round to 3 sig fig you want to round to the first three digits starting with the first non-zero digit by using the fourth digit (as normal) and then replace all further digits to the right by zeros and removing any digits so changed to zero after a decimal point.

Examples:

12345 to 3 sig fig is 12300 since the 4 does not round up the 3.

124578 to 3 sig fig is 125000 since the 5 rounds up the 4.

0.1234 to 3 sig fig is 0.123 since the 4 does not round up the 3 and the trailing zeros (created) are removed.

0.001234 to 3 sig fig is 0.00123

12984 to 3 sig fig is 13000 since the 8 rounds the 9 up.

0.012984 to 3 sig fig is 0.0130 since the 8 rounds the 9 up.

3333333333.33 to 3 sig fig is 3330000000

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Q: How would you get precision to 3 significant figures if there is a 3333333333.33 and the least number was 750?
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How is precision related to the significant figures in a measured quantity?

The greater the number of significant figures, the greater the precision. Each significant figure increases the precision by a factor of ten. For example pi = 3.14 is accurate to 3 significant figures, while pi = 3.14159 with 6 significant figures is a more accurate representation.


How many significant figures are in 20000?

There are only one significant figure in the number 20000. Significant figures are the digits in a number that carry meaning contributing to its precision. In this case, the zeros in 20000 are not considered significant because they are serving as placeholders to indicate the magnitude of the number rather than its precision.


How many significant figures are in the number 0.00038?

The number 0.00038 has two significant figures. Significant figures are digits that carry meaning contributing to the precision of a number. In this case, the zeros before the 3 and 8 are not considered significant because they are leading zeros that simply indicate the decimal's placement. The 3 and 8 are the significant figures in this number.


How many significant figures are in 370.0?

370.0 has four significant figures, because the last zero indicates the precision of the number (to 1 decimal place).


How many significant figures in 0.01?

There is one significant figure: 1 The significant figures of a number are those digits that carry meaning contributing to its precision. Leading zeros (the zero before the 1) are not significant.

Related questions

How is precision related to the significant figures in a measured quantity?

The greater the number of significant figures, the greater the precision. Each significant figure increases the precision by a factor of ten. For example pi = 3.14 is accurate to 3 significant figures, while pi = 3.14159 with 6 significant figures is a more accurate representation.


How many significant figures are in 20000?

There are only one significant figure in the number 20000. Significant figures are the digits in a number that carry meaning contributing to its precision. In this case, the zeros in 20000 are not considered significant because they are serving as placeholders to indicate the magnitude of the number rather than its precision.


How significant figures are in the number 7.405?

There are four significant figures in the number 7.405. These include the digits 7, 4, 0, and 5, all of which are considered significant in defining the precision of the number.


How many significant figures does 2370.0 have?

2370.0 has five significant figures. The zero at the end of the number is significant because it's a part of the measurement accuracy or precision.


How many significant figures are in the number 0.00038?

The number 0.00038 has two significant figures. Significant figures are digits that carry meaning contributing to the precision of a number. In this case, the zeros before the 3 and 8 are not considered significant because they are leading zeros that simply indicate the decimal's placement. The 3 and 8 are the significant figures in this number.


How many significant figures are in 370.0?

370.0 has four significant figures, because the last zero indicates the precision of the number (to 1 decimal place).


How many significant numbers are in 0.0500?

There are three significant figures: the trailing zeros are significant because they are indicative of the precision of the number.


What is the significant figure of 4.47?

The significant figures of 4.47 are three: 4, 4, and 7. These are the digits that carry meaning in the number in terms of precision and accuracy.


What digit in 16.82 determines its precision?

There a four significant figures in the number 16.82, the last '2' determines the best precision available.


How is least count related to significant figures?

The least count of a measuring instrument is the smallest value that can be measured with the instrument. It determines the precision of the measurement. Significant figures, on the other hand, are the digits in a number that carry meaning about the precision of the measurement. The number of significant figures in a measurement is related to the least count of the instrument used to make that measurement.


How do you tell what was the most significant figures?

Significant figures in a number are all the non-zero digits and zeros between them that are significant for the precision of the measurement. To determine the significant figures in a number, count all the non-zero digits and any zeros between them. Trailing zeros after a decimal point are also significant figures.


Is it true that an answer is as precise as the most precise measurement from which it was calculated?

Yes, the precision of an answer depends on the precision of the measurements used in the calculation. The number of significant figures in the answer should match the least number of significant figures in the measurements.