***Chemistry!!!!
posted by Anonymous on .
Carry out the following operations, and express the answer with the appropriate number of significant figures.
1.)[(285.3 multiplied by 105)  (1.500 multiplied by 103)] multiplied by 2.8948
2.) 874 multiplied by [1267  (3.50 multiplied by 128)]
*I know what significant figures are but I am constantly getting my answers wrong for both questions. Help, please??

Follow these rules.
http://www.chemteam.info/SigFigs/SigFigs.html