Obj: Use significant figures and rounding to reflect the certainty of data.
C-work: Copy rounding rules for addition and subtraction P:41 + Practice problems #35,36
        Copy rounding rules for multiplication and division P:42 + Pracitce problems #37,38
H-work: Re-read section 2.3 then practice p:51 #83,84,85 (a,b,c,d)
        Read Section 2.4 and complete the corresponding Science Notebook.
Do now: P:42 answer Q's 39-42