Because you will be using the number pi to find the area of the circle, some rounding will be required.
You would have to round since area will not be able to be represented without rounding.
You can find plenty of math rounding worksheets online. Math rounding worksheets are best for practicing rounding numbers. here you will find plenty of math rounding worksheets to practice with and they are free so there is no need to buy a book. here is the link: www.homeschoolmath.net/worksheets/rounding.php
The answer is that I would try to find out what he understands about rounding and then explain the concept of rounding through examples that he can identify with.
You find its approximate value, in the context of the degree to which you are rounding.
approximate
Estimate by rounding to the nearest ten.​ Then, find the sum.221122plus+33554455​_​_The estimated sum is nothing.
If you mean 8 1/2, you have to find the nearest integer. It is exactly between 8 and 9. Different rounding methods handle this different; a commonly used rounding method will always round up in this case.If you mean 8 1/2, you have to find the nearest integer. It is exactly between 8 and 9. Different rounding methods handle this different; a commonly used rounding method will always round up in this case.If you mean 8 1/2, you have to find the nearest integer. It is exactly between 8 and 9. Different rounding methods handle this different; a commonly used rounding method will always round up in this case.If you mean 8 1/2, you have to find the nearest integer. It is exactly between 8 and 9. Different rounding methods handle this different; a commonly used rounding method will always round up in this case.
20 rounding units. 20.0 rounding tenths 19.8 rounding hundredths 19.76 rounding thousandths 19.765 rounding tenthousandths 19.7649 rounding hundred thousandths
It depends on what you are rounding by. If you are rounding by ten-thousands=80000 If you are rounding by thousands=85000 If you are rounding by hundreds=84700 If you are rounding by tens=84650
The answer depends on whether the rounding is to the nearest hundreds, the nearest tens or nearest unit!
Percentage Error is: ~1.4% (1.39049826188%)