Starting with a number such as "var currency=456.78," currency.toPrecision(4) returns a value of 456.8 by rounding and currency.toPrecision(7) returns a value of 456.7800 by appending two decimal ...

National 5; Rounding Rounding to a given number of decimal places. Many calculations result in solutions to a greater degree of accuracy than what is required. In such cases the answers are ...

National 4; Rounding Rounding to a given number of decimal places. Many calculations result in answers that are more accurate than you need. In such cases the answers are rounded to the required ...