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Significant figures (or significant digits) are the number of digits in a given value or a measurement, necessary to decide the accuracy and precision of measurement. They are important in scientific or technical measurements.
Significant figures are the digits used for the meaningful representation of a given number. Learn its meaning, rules, and rounding off significant digits with solved examples.
Rules for rounding off numbers (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.
Here you will find a range of free printable rounding worksheets to help your child learn to round numbers to either 1,2 or 3 significant figures. These sheets are carefully graded so that the easier sheets come first and give extra support.
In the BBC Bitesize KS23 maths guide, you can learn how to round numbers to three significant figures. You'll also learn what a significant number is!
It makes rounding accurate, not random! Students see this as a meaningful skill for interpreting & communicating calculated results. Explore our extensive range of worksheets designed to help your students practice their skills related to significant figures. These teaching resources and worksheets are in PDF format and can be downloaded easily.
Print a sheet of rules for finding significant figures. Download a significant figure workhseet. Design and print a worksheet for identifying significant figures at math-aids.com. Quiz yourself on significant figures with this fifteen-question quiz. Online 24/7 maths assistance for all levels of maths.
