Chapter 1.2, Problem 46CCR

To determine

To round the decimal number $12.7255$ to thousandths.

Answer to Problem 46CCR

  $12.726$

Explanation of Solution

Given information:

The decimal number: $12.7255$ .

Concept Used:

• To round to the nearest thousandthsof a decimal number, round the third digit after decimal.

  

• If the number right to the digit, we’re rounding off, is greater than 5 then add 1 to the rounding digit but if the number to the right of the digit is less than 5 then drop it.

Calculation:

In order to round the decimal number $12.7255$ to nearest thousandths, round off the third digit after the decimal point. Observe that the fourth digit after decimal is5, which is equal to 5, so add 1 to the third digit after decimal. So, after rounding off to nearest thousandths, the given decimal becomes

  $12.7255=12.726$

Thus, the decimal number rounded to nearest thousandths is $12.726$ .