Writing Basic Algebraic Expressions with Variables

Grade 6 Math Worksheets

What is a variable in an expression?

An algebraic expression has both numbers and variables together with at least one arithmetic operation.

 

Now when we represent both variable and numbers in an expression this is what it looks like:

x + 4

This means 4 more than x.

How do you write an expression in math?

Let’s say for example, Jim works in a departmental store and gets paid $50 per day and when he lifts boxes from the store room he gets paid tips for that. Now, the number of boxes he lifts depends on the extra time he gets every day.

So, now amount Jim gets paid everyday = {50 + tips}.

 

 

 

On Monday Jim gets $30 as tips and $50 as the sales guy so he earns … $80 in all.

On Tuesday he gets $15 as tips and $50 as the sales guy so he earns …… $65 in all.

So, tips is the variable.

So, instead of writing tips in every case we use an alphabet which in math we call as a variable.

($50 + b) is the amount he earns every day.

What is an example of algebraic expression?

    Check Point

    Write the following in algebraic form.

    1. 89 fewer than a
    2. 45 more than r
    3. 22 times b
    4. What is the sum of 84 and w?
    5. What is y increased by 25?
    6. Karen has h Helen has 2 more pens than Karen. Write an expression for how many pens Helen has.
    7. Max has 12 songs. His friend took m Write an expression that shows how many songs Max has now.
    8. Jen earned 80 points in the Science project. Bruno earned b fewer points than Jen. Write an expression that shows how many extra points Bruno earned.
    9. Steffi made 62 chocolate chip cookies and w walnut cookies. How many did she make in all?
    Answer key
    1. a – 89
    2. 45 + r
    3. 22b
    4. 84 + w
    5. y + 25
    6. h + 2
    7. 12 – m
    8. 80 – b
    9. (62 + w) cookies

    Personalized Online Tutoring

    eTutorWorld offers affordable one-on-one live tutoring over the web for Grades 2-12, Test Prep help for Standardized tests like SCAT, CogAT, SSAT, SAT, ACT, ISEE and AP. You may schedule online tutoring lessons at your personal scheduled times, all with a Money-Back Guarantee. The first one-on-one online tutoring lesson is always FREE, no purchase obligation, no credit card required.

    For answers/solutions to any question or to learn concepts, take a FREE Demo Session.

    No credit card required, no obligation to purchase.
    Just schedule a FREE Sessions to meet a tutor and get help on any topic you want!

    Pricing for Personalized Online Tutoring

    Tutoring Package Validity Grade (1-12), College
    5 sessions 21 Days $114
    1 session 21 Days $24
    10 sessions 2 months $219
    15 sessions 3 months $319
    20 sessions 3 months $409
    50 sessions 6 months $949
    100 sessions 10 months $1849

    IN THE NEWS

    ©2021 eTutorWorld           Terms of use            Privacy Policy            Site by Little Red Bird          

    ©2021 eTutorWorld
    Terms of use
    Privacy Policy
    Site by Little Red Bird

    MAKE USE OF THE FIRST SALE OF 2021

     

    ♦ Coupon JAN10 for a 10% Discount on all Tutoring Packs

    ♦ Coupon TEST20 for a 20% Discount on all SCAT, SSAT, CogAT & Enrichment Online Practice Packs

    You have Successfully Subscribed!