Pre-Alg: 1.1-1.6 Review

Writing Expressions

100

Write the following word phrase as a variable expression:

The sum of a number and 8

x+8

200

Write the following word phrase as a variable expression:

The quotient of a number and 4

x/4 or x divide 4

300

Write the following word phrase as a variable expression:

The product of a number and 11, minus 2

11x-2

400

Write the following word phrase as a variable expression:

10 less than the quotient of 7 and a number

7/x-10 or 7dividex-10

500

Write the following word phrase as a variable expression:

9 more than 3 times the difference of a number and 6

3(x-6)+9 or 9+3(x-6)

Evaluating Expressions

100

Evaluate the following when x=4 ...

x/2+1

3

200

Evaluate the following when x=3 ...

7x-9

12

300

Evaluate the following when x=5 ...

3^2times(x+1)

54

400

Evaluate the following when x=6 and y=13...

x^2-2y

10

500

Evaluate the following when x= -3 and y=12...

y^2-x

147

Adding Integers

100

Add:

18+(-7)

11

200

Add:

-14+(-13)

-27

300

Add:

-22+9

-13

400

Add:

-82+25

-57

500

Add:

-40+13+(-2)

-29

Subtracting Integers

100

Subtract:

9-14

-5

200

Subtract:

9-(-8)

17

300

Subtract:

-7-22

-29

400

Subtract:

-51-(-15)

-36

500

Subtract:

10-15-(-23)

18

General Chapter 1 Stuff

100

Evaluate:

|249|

249

*absolute value is ALWAYS positive*

200

Evaluate:

-10+6-12

-16

300

What is the definition of an integer?

Positive or negative whole numbers, and zero.

400

Rewrite using an exponent, and evaluate:

7 times 7 times 7 times 7

7⁴ = 2,401

500

What do we call two numbers that are opposites of each other (for example, 4 and -4)?

additive inverses