Alg A: 2-1 Notes and Practice

Alg A: 2-1 Notes and Practice

by Allison Gilbert

​2-1 Translating Expressions and Equations

• ​Follow along with the slides in this presentation with your notes.

• ​fill in the blank on your notes as you move through the slides

• ​At the end, try out some problems practicing!

• ​After that, you can work on your Classwork #1 which is IXL skill YVW

Multiple Choice

the difference of 3 times a number and 7

• 3 - 7n
• 3n - 7
• 3n + 7 
• 3 / 7n

Multiple Choice

m plus the product of 6 and n 

• m + 6n
• m - 6 + n
• 6m + n
• m + 6 + n 

Multiple Choice

5 less than the product of 7 and s

• 7s - 5
• 5 - 7 + s
• 7(s - 5) 
• 5 - 7s

Multiple Choice

a number more than 12

• n + 12
• 12n 
• 12 + n 
• 12 - n 

Multiple Choice

Five times Mike's age, increased by nine

• 5(x+9)
• 9(5+x)
• 9x+5
• 5x+9

Multiple Choice

4 divided by the sum of a number and 12

• 4 / n + 12
• 4 / 12n
• 4 / (n + 12) 
• (4 / n) + 12

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

5 less than a number is 15.

• x - 5 = 15
• 5 - x = 15
• 15 - x = 5

Multiple Choice

Two more than 4 times a number is -18.

• 4x + 2 = -18
• 2x + 4 = -18
• 18 = 4x +2

Multiple Choice

Twice a number is 24.

• 2n = 24
• 2/n = 24
• 2 + n = 24
• 2 - n = 24

Multiple Choice

Twice the sum of a number and 5 is 22.
What is the number

• 3
• 4
• 5
• 6

Multiple Choice

What is the difference between an expression and equation?

• Expressions have an equal sign and equations do not have an equal sign
• Expressions do not have an equal sign and equations do have an equal sign
• There is not a difference
• Expressions do not have variables and equations have variables

Multiple Choice

What does "difference" mean?

• add
• subtract 
• multiply
• divide

Multiple Choice

Translate: two times the sum of a number and five 

• 2 + y + 5
• 2y + 5 
• 2(y + 5)
• 2 - y + 5

Multiple Choice

A number tripled subtracted from 60 is the same as 21.

• 3c − 60 = 21
• 60 − 3 = 21c
• 60 − 3c = 21
• c(60 − 3) = 21

​CONGRATS!

​You have made it to the end of the notes portion of the class. You may move on to your 2-1 Classwork (Classwork #1), which is IXL skills YVW

​

​If you finish that before the end of class, you may work on your IXL homework skills!

​

​We will start 2-2 Notes on the Ja