rounding help

yes     278 with a 000 000   after it   

how would i round 278414359.311 up to 3 significant figures? i dont understand...would it just be 278?

Hi Nirvana!

You write after the three significant digits  $278\times 10^n$
n is the number of digits between the third number 8 and the point, i.e. 6.

Round 278414359.311 up to 3 significant figures.

$278414359.311\approx 278\times 10^6$

greeting

  !

thanks guys! but wait asinus,,,shouldn't it be 2.78 *10^8 if you want to write it in scientific notation ?