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How do you apply the rules of significant figures in combined mathematical operations?

When performing mathematical operations with significant figures, the result should be rounded to the least number of decimal places in the original numbers. Addition and subtraction should be rounded to the least number of decimal places, while multiplication and division should be rounded to the least number of significant figures.


What is that answer to 6.35 m x 2.467 in significant figures?

15.67 When multiplying or dividing, the answer is rounded to the least number of decimal places as the number in the problem with the least number of decimal places. 6.35 has 2 decimal places and 2.467 has 3 decimal places, so you round the answer to 2 decimal places.


What is the least number that can be rounded of to 4.2?

Technically, 2.1, to the nearest 4.2 However, assuming rounding to decimal places, the answer is 4.15.


What is the least decimal can be rounded to 0.75?

0.745


What is the least perimeter of a rectangle with an area of 32?

If you restrict yourself to integers, it's 24. If not, it's 22.63 rounded to two decimal places.


When you add or subtract what is the rule for determining the number of significant figures in the answer?

When adding or subtracting numbers, the result should have the same number of decimal places as the least number of decimal places in the original numbers. This is because in these operations, you are limited by the least precise measurement. Significance figures don't matter in addition or subtraction, only decimal places.


Rules on addition and subtraction of significant figures?

When adding or subtracting numbers, the answer should have the same number of decimal places as the measurement with the fewest decimal places. The final answer should be rounded to the least number of decimal places among the numbers used in the calculation. Only the decimal portion of the number is considered when determining significant figures for addition and subtraction.


What is the least number that can be rounded off 4.2?

4.15 can be rounded off to 4.2 to one decimal place


How do you round 25000 to two decimal places?

To round 25000 to two decimal places, you would first identify the hundredths place, which is the second decimal place. In this case, the hundredths place is the zero after the decimal point. The digit immediately to the right of the hundredths place is a zero, so we do not need to round up. Therefore, 25000 rounded to two decimal places is 25000.00.


What is the least and the greatest decimal that round off 8.2?

8.15 and 8.19 rounded to 1 decimal place is 8.2


What is the process for adding and multiplying numbers with significant figures?

When adding or multiplying numbers with significant figures, the result should be rounded to the least number of decimal places in the original numbers. For addition, the result should have the same number of decimal places as the number with the fewest decimal places. For multiplication, the result should have the same number of significant figures as the number with the fewest significant figures.


How do you round off 30.54 to one decimal place?

30.54 rounded to one decimal place = 30.5. Because the least significant digit is 4 it is rounded down. Had it been 5 or above the answer would have been rounded up to 30.6