Question

Compare 8 ⋅ 107 to 2 ⋅ 104. Convert 0.00049 to scientific notation.

Answer 1

ANSWER 1: 8•107=856 and 2•104=208 so 856-208=648, meaning that the difference between 8•107 and 2•104 is 648.
ANSWER 2: If 49 in scientific notation is 8•10^0 then we divide by 100,000 and get 0.00008•0.00010^0