Number

Decimal place

The position after the decimal point. "To 2 d.p." means two digits after the decimal point.

Definition

3.14159 rounded to 2 d.p. is 3.14. Rounded to 3 d.p. is 3.142. Look at the next digit to decide whether to round up.

Related terms

Significant figure

A digit that contributes to the precision of a number. Leading zeros do not count.

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