Objective­ Use scientific notation (8.4)
• Standard form­ ex: 2,300,000
n
• Scientific notation: c x 10 where and n is any integer
ex: Ex 1: Write the number in scientific notation:
a) 42,590,000
Step 1: Identify the coefficient
Step 2: Count # of decimal places from dec. point's position in the coefficient to its original position. Write it as a power of 10. Step 3: Put coefficient and power of 10 together: _______________
b) 539,000
c) 0.0000574
d) 0.00406
Ex 2: Write the number in standard form.
a) 4.709 x 106 b) 6.1 x 10­3
c) 2.7 x 105 1
Ex 3: Evaluate the expression. Write your answer in scientific notation.
a) b)
c)
d) 2
Classwork 8.4
Evaluate and write answer in scientific notation.
1)
2)
3)
4)
3