One and Two Step Expressions Class Review

One and Two Step Expressions Class Review

One Step Expression

• has one operation

• order matters if subtracting or dividing

• more than one way to say the same thing

• "less than" and "fewer than" changes the order

• if we don't know a number, we use a variable

Examples of One Step Expressions

3m is the product of m and 3
w + 9 is the total of w and 9
5 - k is 5 decreased by k

 $j\ \div\ 5\ is\ the\ quotient\ of\ j\ and\ 5$  

There are other ways to say the same things.

Multiple Choice

Which one is NOT the same as the others?

• the product of y and x

• x multiplied by y

• y times x

• the quotient of x and y

Poll

True or false? 14 increased by h is equivalent to the sum of h and 14

• true

• false

Multiple Select

Which word phrases mean s - u? Check ALL that are true.

• difference of s and u

• s less than u

• s decreased by u u

• u fewer than s

Poll

 $Can\ the\ \exp ression\ 20\ \div\ d\ say\ the\ quotient\ of\ d\ and\ 20?$ 

• no

• yes

Open Ended

Haisley has x number of sweateshirts in her closet. Six don't fit her any more. Write an expression to show how many sweateshirts fit her.

Poll

True or False.....

c - r means r less than c

• true

• false

Two Step Expressions

• have 2 operations

• may need ( ) to show meaning

• apply order of operations

• the word "quantity" is helpful

• words have to match up with order

Multiple Choice

Which expression means double the quantity of 4 increased by u?

• 2u + 4

• 2(4 + u)

• 2(4) + u

• 
  

  $4\ +\ u\ \cdot\ 2$

Multiple Select

Which word phrases look like 15 - (b + 1)? Check all that are true.

• 15 decreased by the total of b and 1

• the difference of 15 and the quantity b increased by 1

• 15 minus b plus 1

• the sum of b and 1 minus 15

Multiple Choice

Choose the variable expression that means 5 times the quantity of j divided by 2?

• $5\ \cdot\ j\ \div\ 2$

• $5\left(2\div j\right)$

• $5j\div2$

• $5\left(j\div2\right)$

Poll

True or False.....

24 - 8n means the product of 8 and n decreased by 24

• true

• false

Scenarios -

Here's when we need expressions to help us evaluate a problem

These questions are BOTH one and two step expressions.

Multiple Select

Choose any scenarios that can be evaluated using the expression 10m

• Mark has m dollars and then earns $10 for doing shores. What is is total money?

• Mariah did m push-ups. Her older brother can do ten times as many. How many can her brother do?

• Ferris ran for m miles, but Kerry ran for 10 more miles. How far did Kerry run?

• One pair of mittens cost $10. What is the total cost for m pairs?

Multiple Choice

Alan picked s + 5 pounds of strawberries on Tuesday, but then he picked twice as many pounds the next day. How much did he pick on Wednesday?

• 2s + 5

• 5 + 2(s)

• $\left(s+5\right)^2$

• 2(s+5)

Multiple Choice

What does the expression 100 + 45h represent?

• The electrician charges $100 per hour and then a $45 tip.

• The mechanic charges $45 per hour plus $100 for the part to repair the car.

Poll

True or False..... Wednesday was w degrees and Thursday was 2 degrees colder. Thursday was 2 - w

• true

• false

We're done reviewing!

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The quiz has 8 multiple choice and 4 true/false.