10th grade math
posted by Rebekah on .
How would you figure out 1.45386759 x 10 to the 12 and round to the significant figure?
thanks

Please explain. One has to know how many significant digits there are before it can be rounded.

ok. Like here in this example...
1.548937075 x 10 to the 12th. Would you do the problem 1.548937075 x 10 to the 12th which would be 1,548,937,075,000 first before you rounded. I think in the number that I got (1,548,937,075,000) there are 10 significant numbers?? 
sry... 1.548937075 x 10 to the 12th. round the number to 3 significat figures.

If you didn't do the power of 10 and just kept the number 1.548937075 wouldn't it be rounded to 1.55 if it was round to 3 significant numbers?