Use the rules of significant figures to simplify the following expression: 67.31 - 8.6 + 212.198

Question

Use the rules of significant figures to simplify the following expression:  67.31 - 8.6 + 212.198

ipwnbunnies · Answer

When it comes to significant figures and addition and subtract, your answer should have at least as many decimal places as the term with the LEAST amount of decimal places.

ipwnbunnies · Answer

How many decimal places do you expect your answer to have?

ipwnbunnies · Answer

@kageman098

anonymous · Answer

1 @iPwnBunnies

ipwnbunnies · Answer

Right! So, do the math including all the numbers included. Then, round to the nearest first decimal place, or in other words, round to the nearest tenth!

anonymous · Answer

And what would I get ?

ipwnbunnies · Answer

Do you have a calculator?

anonymous · Answer

would it be 271

ipwnbunnies · Answer

No, your answer should include the tenth decimal place, as noted above.

ipwnbunnies · Answer

I meant the tenths place, or the first decimal place.

anonymous · Answer

I mean I got 270.908 and if I round to the tenths I get 271

ipwnbunnies · Answer

No, you're rounding to the 1s place I think. As I said, your answer should include the 1 decimal place because the term with the lowest decimal place is 8.6. The tenths place is the 1st place after the decimal point.

ipwnbunnies · Answer

It'll be 270._

anonymous · Answer

So it would be 270 or 270.9 right ?

anonymous · Answer

I got it. It was 270.9 thanks for the help