Answer :

W0lf93
A thousandth is the place value column three places to the right of the decimal point. 7.2199 rounded to the nearest thousandth is 7.22, because rounding 9 up makes 10, so this affects the place value column to the left of it also.
carlosego

For this case we have the following definition:

nearest thousandth: is the second digit of a number after the decimal point

We then have the following number:

7.2199

We note that the third digit after the decimal point is greater than 5.

Therefore, the second digit increases its value by one unit.

We have then that the rounded number is given by:

7.22

Answer:

Rounding to the nearest thousandth we have:

7.22

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