Page 11 - Math Course 2 (Book 1)
P. 11
Standard Form and Scientif c Notation
Express Numbers in Scientif c Express 0.00042 in scientif c notation.
Notation
A. 42 × 10 –5
B. 4.2 × 10 –4
4
Examples C. 4.2 × 10 –3
D. 4.2 × 10
Express 800,000 in scientif c notation.
800,000 = 8.0 × 100,000 The decimal point Answer
moves 5 places.
= 8.0 × 105 The exponent is
positive.
Answer 8.0 × 10 5
Express 0.0119 in scientif c notation.
0.0119 = 1.19 × 0.01 The decimal point moves 2 Express Numbers in Scientif c Notation
places.
Express 65,000 in scientif c notation.
–2
= 1.19 × 10 The exponent is negative.
A. 6.5 × 10 5
B. 6.5 × 10 –4
Answer 1.19 x 10 –2 C. 6.5 × 10 4
D. 65 × 10 3
Answer
Your Turn!
Express Numbers in Standard Form
6
Express 2.614 × 10 in standard form.
A. 2,614,000
B. 261,400
C. 0.000002614 Express 8.03 × 10 in standard form.
–4
D. 0.002614
A. 80,300
B. 8.030
C. 0.000803
D. 0.0803
Answer
Answer
3
