PREP Algebra Unit 3 Spiral Review

PREP Algebra Unit 3 Spiral Review

Complete the slides with 80% accuracy! Use the instructional slides to refresh your memory on the learning targets from Unit 3. Remember, these questions will be on your final exam!

Parts of an Expression

How can you describe the parts of an expression?

Multiple Choice

How many terms are in this expression?

$$14+7x-4z$$  

• 1

• 2

• 3

• 4

There are 3 terms.

The coefficient is 7 because 7 is the number the variable is being multiplied by.

Algebraic Expressions

By Susan Kahler

Multiple Choice

2x + x²; for x = 3

Hint: Substitute 3 in for "x" in the expression and simplify.

• 12
• 15

Multiple Choice

What is the value of the expression 2x² - 5y + 3

when x=3 and y=3

• 0

• 30

• 6

• -3

Like-Terms

How do we combine like terms?

​For example 6x-4+3-5x

Like terms are 6x-4+3-5x

Add the terms ​6x+(-5x)+(-4)+(+3)

The sign in front of the term is crucial!!!​

1. Use circles, underlines, or a highlighter to identify like terms INCLUDING THE SIGN IN FRONT OF IT

2. Combine the terms by adding like terms together

Some text here about the topic of discussion

Combining Like Terms

Use the signs in front of the terms.

Only terms that share the same variable (raised to the same power) can be combined.

Always ADD the terms together but remember to look at the signs before it!

Multiple Choice

Simplify the expression by combining like-terms:

$$-3y+1+9y-4$$  

• $$3y$$  

• $$6y-3$$  

• $$12y+3$$  

Multiple Choice

Simplify the expression by combining like-terms:

$$b+3b+7$$  

• $$3b^2+7$$  

• $$3b+7$$  

• $$4b+7$$  

Multiple Choice

Simplify by combining like terms:
5a + 2b - 3a + 4

• 8a + 2b + 4
• 2a + 2b + 4
• 8ab
• 4ab + 4

Distributive Property

TEK 6.7D

The Distributive Property

• The distributive property allows us to multiply each term inside parentheses by the number outside the parentheses. 

• 4(3 + 4) = 4(3) + 4(4)

Using Variables

• Multiply 5 times x

• Multiply 5 times 6

• We multiply the outside number by all terms on the inside of the parentheses.

Multiple Choice

Which is equivalent to 5(a + 6)?

• 5a + 6

• a + 30

• 5a + 30

• 5a - 30

Multiple Choice

2(4k + 7)

• 4k-9

• 4K+9

• 8k-14

• 8k+14

Multiple Choice

Simplify 5(2 - 7n)

• 52 - 57n

• 10 - 7n

• 10 - 35n

• 10 + 35n

Multiple Choice

Simplify
14(b – 10).

• 4b
• b – 140
• 14b – 140
• 14b – 10

translating expressions

Multiple Choice

the product of x and sixteen

• x + 16
• x - 16
• 16x
• x/16

Multiple Choice

46 less than a number

• 46 - n
• n - 46
• 46 + n
• n + 46

Multiple Choice

Translate this phrase into an algebraic expression.
8 less than the product of 4 and a number
Use the variable m to represent the unknown number.

• 8 - 4m
• 8m - 4
• 8m + 4
• 4m - 8

Multiple Choice

a number more than 12

• $$\frac{12}{n}$$

• 12n 
• 12 + n 
• 12 - n 

Congrats! You have completed Unit 3 Spiral Review!

Make sure you have gotten 80% or better so you can get full points in the gradebook!

You can also go back and practice again to make sure you are ready for your exit ticket!