Scientific Notation/ Exponents Review 9/25

Exponents

100

x⁴ * x⁵

x⁹

200

y⁶ / y³

y³

300

(x⁵)³

x¹⁵

400

x⁵y²z³ * y³zx⁴

x⁹y⁵z⁴

500

y³ / y⁷

1 / y⁴

Convert to Sci. Notation

100

780,000

7.8 x 10⁵

200

0.045

4.5 x 10^-2

300

500,000,000

5 x 10⁸

400

0.0004

4 x 10^-4

500

520

5.2 x 10²

Convert back to Standard

100

7 x 10³

7000

200

4.5 x 10^-4

0.00045

300

9.3 x 10⁵

930.000

400

8 x 10^-6

0.000008

500

2.05 x 10⁴

20,500

Exponents II

100

3x² * 2x⁵

6x⁷

200

18y⁸ / 6y⁵

3y³

300

(2x⁵)³

8x¹⁵

400

4.5x * 2x^-5

9 / x⁴

500

16y⁷ / 10y⁹

8 / 5y²

Facts

100

What is anything raised to the zero power?

One

200

How many non-zero digits do we want to the left of the decimal when using scientific notation?

One

300

What does the exponent represent when using Scientific Notation?

How many times the decimal place was moved.

400

Why is Scientific Notation used?

To write really large and really small numbers

500

I am an odd number. Take one letter away and I become even. What am I?

Seven