Significant Figures Converter (Sig Figs Calculator) | Count, Convert And Round (2024)

FAQs

How do you determine the number of sig figs to round to? ›

The number of sig figs of your answer is dependent on the way you calculate. For addition and subtraction, round to the last sig fig of the least precise number. For multiplication and division, your final answer should have the same number of sig figs as the least precise value given in the original problem.

(ii) To round the number 0.00321609 to 3 significant figures, we start counting from the leftmost nonzero digit, which is 3. The three digits following the 3 are 2, 1, and 6. Since the 2 is less than 5, we do not need to round up. Therefore, 0.00321609 rounded to 3 significant figures is 0.00322.

Final answer:

If the digit is less than 5, we simply drop all the digits after the second significant figure. Therefore, 0.00862 rounded to 2 significant figures is 0.0086.

Answer and Explanation:

This means that 0.9999 rounded to three decimal places is 1.000.

(1) If the digit to be dropped is greater than 5, the last retained digit is increased by one. For example, 12.6 is rounded to 13. (2) If the digit to be dropped is less than 5, the last remaining digit is left as it is. For example, 12.4 is rounded to 12.

When adding/subtracting, the answer should have the same number of decimal places as the limiting term. The limiting term is the number with the least decimal places. When multiplying/dividing, the answer should have the same number of significant figures as the limiting term.

She has taught science courses at the high school, college, and graduate levels. 1. The number 535.602 rounded to 3 significant figures is: 535.6.

As a result, rounding off 2.735 to three significant digits yields 2.74.

The number 3.845 rounded off to three significant figures becomes 3.84 since the preceding digit is even. On the other hand, the number 3.835 rounded off to three significant figures becomes 3.84 since the preceding digit is odd.

15) When the number 65.59 is rounded to contain 2 significant figures, it becomes 66.0 16) When the number 2.35 is rounded to contain 2 significant figures it becomes 2.4.

What is 6.998 rounded to 2 significant figures? ›

6 Ali says that 6.998 rounded to 2 significant figures is 7.

Round 78.56 to two significant figures. The first significant figure is 7 7 7 and the second is 8 8 8. The next number to the right is 5 5 5, so we round up. Adding one to the 8 8 8 gives us 9 9 9 and therefore we have 79 79 79.

Answer and Explanation:

The numbers are 0,5,1 and 0. The zero before the decimal point is not significant. But the non zero digits and the zero after the nonzero digits are significant in nature. Hence the number of significant digits are three.

Zeroes at the right end after the decimal point are significant but if the zeroes are used for spacing for the decimal place, it is not considered significant (examples are the zeroes before and after the decimal point). From the given choices, (c) 0.202 g is expressed in 3 significant figures.

Zeros between two non-zero digits are significant.

Thus, 2.005 has four significant figures. Zeros at the end or right of a number are significant, provided they are on the right side of the decimal point. For example, 0.200 g has three significant figures.

All zeros that occur between any two non zero digits are significant. For example, 108.0097 contains seven significant digits. All zeros that are on the right of a decimal point and also to the left of a non-zero digit is never significant. For example, 0.00798 contained three significant digits.

For multiplication and division problems, the answer should be rounded to the same number of significant figures as the measurement with the least number of significant figures.