A.1 - Translating & Evaluating Expressions

A.1 - Translating & Evaluating Expressions

By Ms. Bergan

​Addition	​Subtraction	​Multiplication	​Division
​Sum	​Difference	Product​	​Quotient
Plus	​Minus	​Times	​Divided By
​Increased By	​Decreased by	​Double	​Half
​More Than	​Take Away	​Twice	​Separated Into
​Total	​Fewer	​Double	Per
​	​Less	​Triple	​
​	​*Less Than	​Of	​
​	​*Subtracted From	​	​

​Grouping Phrases	Exponents​	Radicals​	Equals​
​The Quantity Of	​Squared	​Cube Root	​Equivalent To
​	​Cubed	​Square Root	Results In​
​	​Power	​	​Is
​	​Raised To	​	​The Same As

Turnaround words

Certain keywords tell us to turn around the order of the translation.

To From Than​

​Subtract _____ From ______,

_____Subtracted from______,

_____ less than ______​

Multiple Choice

Write an algebraic expression for "the difference of eighteen and a number".

• 18n

• n-18

• 18-n

• 18/n

Multiple Choice

Six less than twice a number.

• 6 – 2x

• 6 – x²

• 2x – 6

• x² – 6

Multiple Choice

5 less than  r

• 5 - r

• r - 5

• 5r

• r + 5

Multiple Choice

A number squared increased by 1

• 1 + √2

• x² + 1

• x² − 1

• _{√2 + 1}

Multiple Choice

SOL Question: Travis would like to buy some toys to donate to charity. He plans to buy 9 dolls at "d" dollars and 2 toy cars at "c" dollars each, and 3 train sets at "t" dollars each. Which expression represents the total cost, in dollars, or these items that Travis wants to buy?

• $$9c+2t+3d$$  

• $$9d-2c-3r$$  

• $$9d+2c+3t$$  

• $$9c-2t-3d$$  

Multiple Choice

SOL Question: Which expression represents four less than half a number, n?

• $$4-\frac{1}{2}n$$  

• $$\frac{1}{2}n-4$$  

• $$\frac{1}{2}\left(4-n\right)$$  

• $$\frac{1}{2}\left(n-4\right)$$  

Evaluating Expressions

USE DESMOS

• Type the expression exactly how you see it or use CAPITAL LETTERS FOR EACH VARIABLE

• Select the "add sliders"

• Slide the letters to the desired number or type it in next to the equal​ sign

Multiple Choice

a²-b²Evaluate if a=4 and b =-2

• 4

• 20

• -4

• 12

Multiple Choice

SOL Question: What is the value of the expression with $$x=\frac{2}{3}$$  ?

$$x^2+3x-2$$  

• $$\frac{16}{3}$$  

• $$\frac{40}{9}$$  

• $$\frac{4}{3}$$  

• $$\frac{4}{9}$$  

Multiple Choice

SOL Question: What is the value of this expression when $$n=-15$$  ?

$$-2\left|n+6\right|$$  

• - 42

• - 18

• 18

• 42

Poll

How do you feel about these two topics?

• Confident

• Okay

• I need a little more review

• I have no idea...