Chapter 2, Lesson 2


2-2.A recognize the form for scientific notation
Which of these numbers is in scientific notation?
(a)
0.9 × 104 (b) 12 × 107 (c)—4 × 106 (d) 3.2 × 10—5

2-2.B operate with numbers in exponential form
Simplify: Answer in standard form.