Final answer:
Yes, the length of the ant is rounded to the ones place. The ones place is the place value that represents the units digit in a number. In this case, the length of the ant is 21.4 units.
Step-by-step explanation:
Yes, the length of the ant is rounded to the ones place.
The ones place is the place value that represents the units digit in a number. In this case, the length of the ant is 21.4 units. When we round to the ones place, we look at the digit immediately to the right of the ones place value.
If the digit is 5 or greater, we round up by increasing the ones place value by 1. If the digit is less than 5, we round down by leaving the ones place value unchanged.
Since the digit immediately to the right of the ones place is 4, which is less than 5, we round down. So the length of the ant, rounded to the ones place, is 21 units.