Round the number $21.309$ to the nearest hundredths place. A. $21.33$ B. $21.32$ C. $21.31$C. $21.31$ D. $21.29$ E. $21.3$

1. To round the number to the nearest hundredths place, find the number in the thousandths place. If the number in the thousands place is greater than or equal to five, then round up, which means add one to the hundredths digit. And if the number in the thousandths place is less than five, then round down, which means ignore all the numbers after hundredths place and keep only up to hundredths place. So, $21.31$ is the number rounded to the nearest hundredths place. No More Steps