Question 211371
what is 208.637 correct to 2 significant figures?
If the next digit to the right of the position being rounded is 5 or greater then you add 1 to the rounding position and zero out all digits to the right.
If the digit to the right of the rounding digit is 4 or less the rounding digit doesn't change but you still zero out all digits to the right.
210 ans. IF your rounding the whole digits.
208.640 ans. IF you're rounding the decimal digits. 
---------------------------------------------------- 
what is (2.5+4) / (2.5*4)
6.5/10=.65 ans.
----------------------------------------------------------
8.6792 the value of the digit 7 is?
The value of the 7 is 7/100 or 7 hundredths.