Excel Certification Practice Exam 2026 – Comprehensive Study Guide

The function that allows you to round a number to a specified number of digits is ROUND(). This function takes two arguments: the number you want to round, and the number of digits to which you want to round it. If the specified number of digits is greater than zero, ROUND() will round to that number of decimal places. If the number of digits is zero, it will round to the nearest whole number, and if the number of digits is less than zero, it will round to the left of the decimal point.

For example, using ROUND(123.456, 2) would result in 123.46, while ROUND(123.456, 0) would result in 123. Thus, ROUND() provides a versatile way to control the precision of your numerical data in Excel, making it the most appropriate choice for this function.

Other functions mentioned serve different purposes. ROUNDDOWN() rounds a number towards zero and does not consider the second argument as traditional rounding might; it simply truncates the number. ROUNDUP() always rounds away from zero, ensuring that the value is always rounded up, regardless of the digits following the rounding point. DECIMAL() converts a text representation of a number in a specific base to