Scientific Notation Continues…. Tuesday. Oct 22, 2013 Math 8

Write in Scientific Notation 25.4 × 10 7 x 107 Needs to be between Zero and Ten… 25.4 Add exponents 2.54 x 101 x 107 2.54 x 108

Write in Scientific Notation 37.5 × 10 −5 37.5 3.75 x 101 x 10-5 3.75 x 10-4

Practice 18.45 × 10 12

Practice 81 × 10 18

Multiply x 2.5 × 10 4 3 × 10 2 7.5 106 Add Exponents 2.5 × 10 4 3 × 10 2 7.5 x 106 Is it between Zero and Ten?? Yes!! Then it is written in Scientific Notation

Multiply (8.5 × 10 −2 ) 7 × 10 −7 59.5 x 10-9 NOT between 0 and 10 So, not in Scientific Notation. 59.5 5.95 x 101 x 10-9 5.95 x 10-8

Practice 6 × 10 8 2 This is the same as…. 6 × 10 8 6 × 10 8

Assignment: Text Book Page 207: # 44 - 47