Question

How do you round \[139,664\] to the nearest ten?

Answer 1

Hint: We need to round the given values at the digit to the immediate right of the digit. If the digit is greater than or equal to five, then round up the value. Otherwise, if the digit is less than or equal to four, then the digit to be rounded remains the same. Any digit after the digit becomes zero or if they are located after the decimal point is dropped off. This is called rounding down.

Complete step by step solution:
The breakdown of \[139664\] is
 \[1\] Hundred thousands
 \[3\] Ten thousands
 \[9\] Thousands
 \[6\] Hundreds
 \[6\] Tens
 \[4\] Ones
The digit to the immediate right of the digit \[6\] in the tens place is \[4\] . So, the tens digit \[6\] remains the same because it is greater than five, and the once digit \[4\] is rounded down to \[0\] .
Therefore, \[139664\] rounded to the nearest ten is \[139660\] .
So, the correct answer is “ \[139660\] ”.

Note: Here, the rounding down concept is used which is defined as round the given values at the digit to the immediate right of the digit. If the digit is greater than or equal to five, then round up the value. Otherwise, if the digit is less than or equal to four, then the digit to be rounded remains the same.