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 ...

To round a number to a given number of decimal places, the answer must have that number of decimal places - even if you have to add some zeros. For example, rounding \(3.40021\) to two decimal ...

Round \(3.168\) to two decimal places. \(3.168\) is correct to three decimal places as there are \(3\) digits after the decimal point. If the number at the next decimal place is five or more add 1 ...