The accuracy of the answer is limited to the LEAST significant figures of the input. So if two measured quantities are multiplied or divided, one of which is accurate to only two significant figures, and other to six significant figures, the answer is only accurate to two significant figures. HOWEVER: use all the figures you have for the calculation, and then round your answer to two significant figures.
Also, however, remember that if you are multiplying by an actual exact number, as in doubling, the significant figures of that 2 is unlimited, so the answer is only limited by the significant figures of the number you are doubling.
For multiplication/division, use the least number of significant figures (ie 6.24 * 2.0 = 12). For addition subtraction, use the least specific number (ie 28.24 - 2.1 = 26.1)
addition,subtraction,multiplication,division
addition subtraction multiplication division
Use the rules of significant figures to answer the following : 22.674 * 15.05. Answer: 341.2
You count the number of figures from left to right starting with the first number different from 0. Example: 205 has 3 significant figures 0.0000205 has 3 significant figures 0.000020500000 has 8 significant figures
For multiplication/division, use the least number of significant figures (ie 6.24 * 2.0 = 12). For addition subtraction, use the least specific number (ie 28.24 - 2.1 = 26.1)
When performing calculations involving significant figures in both multiplication and addition operations, ensure accuracy by following these steps: For multiplication and division, the result should have the same number of significant figures as the measurement with the fewest significant figures. For addition and subtraction, the result should be rounded to the same decimal place as the measurement with the fewest decimal places. By applying these rules, you can maintain the accuracy of your calculations involving significant figures.
When adding or multiplying numbers, the result should have the same number of decimal places as the number with the fewest decimal places. For addition, the result should have the same number of significant figures as the number with the fewest significant figures. For multiplication, the result should have the same number of significant figures as the number with the fewest significant figures.
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.
The simple rule is: no more significant figures than the least accurate of the values in the computation. For multiplication and division, the result should have as many significant figures as the measured number with the smallest number of significant figures. For addition and subtraction, the result should have as many decimal places as the measured number with the smallest number of decimal places. (Rounding off can be tricky, but that would be another thread)
addition,subtraction,multiplication,division
When adding or subtracting numbers, the result should have the same number of decimal places as the number with the fewest decimal places. When multiplying or dividing numbers, the result should have the same number of significant figures as the number with the fewest significant figures.
They are not the same!The set of integers is closed under multiplication but not under division.Multiplication is commutative, division is not.Multiplication is associative, division is not.
Addition, subtraction, multiplication and division
addition subtraction multiplication division
They are not the same. You can multiply by zero but division by zero is not defined.
Use the rules of significant figures to answer the following : 22.674 * 15.05. Answer: 341.2