Round off the following to 2 significant figures, then, express the answer in correct scientific notation a. 0.0875 Answer 8.8 x 10-2 b. 19.50 Answer 2.0 x 101 c. 904.2 x 10 9 Answer 9.0 x 1011 d. 9003 Answer 9.0 x 103 3. Solve the following, the answer must be in scientific notation with the correct number of significant figures. a. 9.678 x 10

Fleeing the gamesEach student should individually complete the post assessment, Writing and Comparing Numbers in Scientific Notation - Post-Assessment, Attachment D. Calculators may be used. The answer key and scoring guidelines are in Writing and Comparing Numbers in Scientific Notation - Post-Assessment Answer Key and Scoring Guidelines, Attachment E.

A Shortcut for Converting from/to Scientific Notation… Another way of thinking about scientific notation is as follows. Take any number written in scientific notation, such as: 4.2 × 10n n (in the factor 10n) can also be seen as representing the number of places that the decimal point must be shifted