Expressions

Standard Form

100

Write in Standard Form:

1 x 10⁰

1

200

5 x 10²

500

300

Write in Standard Form:

3.04 x 10^-3

0.00304

400

Write in Standard Form:

1.002 x 10¹

10.02

500

Write in Standard Form:

4.26 x 10^-5

0.0000426

Simplifying Expressions

100

x² - 3x² + 4x²

2x²

200

(x - 4) + 12

x + 8

300

3[x + 2(x - 3]

9x - 18

400

x + 19 - 5x - 9

-4x + 12

500

What is the FIRST step to solve:

2x(x - 1) - 3(2x - 5)

= 2x² - 2x - (6x - 15)

then , next step is to combine like terms

Scientific Notation

100

Write in scientific notation:

5.0

5 x 10⁰

200

Write in Scientific notation:

900

9 x 10²

300

10.09

1.009 x 10¹

400

Write in Scientific Notation:

.00403

4.03 x 10^-3

500

13.67 x 10²

1.367 x 10³

Evaluating Expressions

100

Solve

3x, when x = 5

15

200

Solve

10x + 2x, when x = -6

-72

300

Solve

3x + 4y, x = 7 and y = -2

13

400

Solve

x/3 + 4x, when x = -9

-39

500

Solve

-10(x + 2)², when x = -8

-360

Miscellaneous

100

Estimate by rounding each term to the hundreds place:

8146 + 1362 - 875

8,600

200

Estimate by rounding to the nearest dollar

$12.97, $9.87, $34.93, $9.49

$67.00

300

What are the like terms in the expression:

4xy² + 3y - 6x - 9 - 5x

-6x and -5x

400

Use the Distributive Property to write an equivalent expression:

7(x - 12)

7x - 84

500

Which is more like the size of a bookcase: 

6 x 10¹  or  6 x 10^-1

6 x 10¹