How to round numbers
Look at the next digit after the place you are rounding to, then apply the chosen rounding rule.
What are significant figures?
Significant figures show precision by counting the meaningful digits in a measurement or calculation.
Truncation vs rounding
Rounding may increase the final digit. Truncation simply cuts off digits and never rounds up.
Rounding in real-world contexts
Rounding appears in money, measurements, statistics, exam answers, and published figures where precision matters.