Quiz 1-2 Review

Exponents

100

Write in exponential form:

(-3)(-3)(-3)(2)(2)

(-3)³(2)²

200

Write in exponential form:

xy . xy . xy . z . z . z

(xy)³ . z³

300

Simplify:

(-7)² t^-5 r⁰ 

49 / t⁵

400

Simplify:

(-2)⁵8^-1(7)⁰

=-32/8=-4

500

Simplify:

-5³(-10)^-1 h^-7a^-3

= -125/-10h⁷a³ = 25/2h⁷a³

Square Roots & Squares

100

Evaluate:

sqrt(81)

9, -9

200

Evaluate:

- sqrt(64)

-8

300

What two consecutive integers does sqrt(21) lie between?

4 and 5

400

What two consecutive integers does sqrt(367) lie between?

19 and 20

500

What is the sqrt(-25)?

Not possible.

Cube Roots& Cubes

100

Evaluate:

cbrt(-125)

-5

200

Evaluate:

cbrt(13,824)

24

300

What two consecutive integers does the cube root of 900 lie between?

9 and 10

400

What two consecutive integers does the cube root of -15,000 fall between?

-24 and -25

500

What two consecutive integers does the cube root of (-820) lie between?

-9 and -10

Scientific Notation

100

Convert to scientific notation:

0.00053

5.3 x 10^-4

200

Convert to scientific notation:

128,030,000

1.2803 x 10⁸

300

Convert to standard form:

8.3209 x 10^-5

0.000083209

400

Convert to standard form:

4.7009 x 10⁵

470,090

500

The sun is 1.5 x 10⁸ kilometers away from earth. The moon is 3.844 x 10⁵ kilometers away from the earth. Which is closets to earth, and by how much? Write your final answer in scientific notation.

The Moon is closer by 1.496156 x 10⁸ kilometers.

150,000,000 - 384,400 = 149,615,600

Comparing and Ordering

100

Which one is the biggest number?

1.4 x 10¹² or 15.2 x 10¹¹

15.2 x 10¹¹ = 1.52 x 10¹² which is bigger

200

Which number is smaller?

0.000000957 or 0.000001

0.000000957 is smaller

300

Order the following from least to greatest:

6^-2, 31%, 3.1 x 10^-2

6^-2, 3.1 x 10^-2, 31%

400

Bonus (x2 points): What is Mrs. Mock's dog's name?

Hint: He is named after a US state.

Dakota

500

When is Mrs. Mock's birthday?

Hint: The month, day, and year all end in a zero.

10/20/2000

October 20th, 2000