Unit 1 Pre-Algebra

1.1 to 1-4

100

Find a real number between 3 1/2 and 3 5/8.

3 9/16

200

Write the fraction as a decimal and identify what type of decimal it is (show your work):

4 2/3

4.6666...  repeating

300

Approximate the square root of 79 to the nearest whole number.

9

400

Put these numbers in order from least to greatest:

square root of 82, 9.7, 8.943, 9 8/9

8.943, square root of 82, 9.7, 9 8/9

500

Write 1.888... as a fraction.

1 8/9

1.5 to 1.7

100

Solve: (-13)⁰

1

200

Write in exponential form: (-5)(-5)(-5)

(-5)³

300

Write the product as one power:

8³ x 8⁴

8⁷

400

Write the quotient as one power:

3¹²/3¹⁰

3²

500

Simplify: (27²)⁵

27¹⁰

1.8 to 1.11

100

Write your answer in simplest form:  4/5 + 3/5

1 2/5

200

Write the sum in simplest form:

8/9 + 3/4

1 23/36

300

Write the difference in simplest form:

5 3/8 - 2 1/4

3 1/8

400

0.27 x 1.5

0.405

500

0.5 / 0.4

1.25

1.12 to 1.15

100

When you get a letter by itself on one side, that is called ________________.

isolating the variable

200

Combine like terms:

4(x - 5) + 3x

7x - 20 

300

Show the work, circle your solution, and check it.

-12 + x = 8

x = 20

400

Show your work, circle your solution, and check it.

1/5x = 15

x = 75

500

Show your work, circle your solution, and check it.

2/3x - 5/9 - 1/3x = 7/9

x = 4

1.16 to 1.19

100

Solve and graph.

5 + 2x < -7

x < -6

open circle at -6 with a line to the left

200

Solve and graph.

3(a - 2) - 4 > 23

a> 11

open circle at 11 with a line going to the right

300

Show your work, circle your solution, and check it.

5x - 3(x - 4) = x + x - 5 + 17

12 = 12

infinite solutions

400

Show your work, circle your solution, and check it.

4x - 7 = 2(x - 3) - (x + 4) 

x = -1

-11=-11

500

Show your work, circle your solution, and check it.

8(x - 3) = 4x + 2(2x - 7)

-24 does not equal - 14 

no solution