Writing Equations and Expressions

Presentation

•

Mathematics

•

6th - 8th Grade

•

Medium

•

CCSS

HSA.CED.A.3, HSA-SSE.A.1A, 6.EE.B.6

Standards-aligned

Nadelyn Pichardo

Used 20+ times

FREE Resource

2 Slides • 24 Questions

Writing Algebraic

Expressions and Equations

Objective

🎯write algebraic expressions and equations corresponding to a real-life situation

🎯Define and use multiple variables

🎯Understand the connection between different operational keywords.

Poll

Would you rather be a

bear

tiger

shark

eagle

fly

Poll

How are you feeling today?

Expression v Equation

An expression is a number, a variable, or a combination of numbers and variables, and operation symbols.

An equation is made up of two expressions connected by an equal sign.

Multiple Choice

Rebecca paid $324 for concert tickets. Rebecca bought "x" amount of tickets.

Choose the expression that shows how much each ticket cost.

$324+x$

$324-x$

$324\times x$

$324\div x$

Multiple Choice

Ben had "x" dollars. Cam has 7 fewer dollars than Ben.

How much money does Cam have? Write your answer as an expression.

$x+7$

$x-7$

$x\times7$

$x\div7$

Multiple Choice

Jordan makes 100 dollars each week. He worked for x weeks this summer.

How much money did Jordan make this summer? Write your answer as an expression.

$100+x$

$100-x$

$100\times x$

$100\div x$

Multiple Choice

If there are 20 balloons at a party and a number (b) of them burst, how many balloons are left?

Write the phrase as an expression:

b - 20

20(b)

20 - b

20 + b

Multiple Choice

Perry has 17 fewer baseball cards than Pete.
If b represents the number of cards Pete has, write an expression for how many baseball cards Perry has.

b + 17

b -17

17 - b

17 + b

Multiple Choice

z - 4

4 inches ahead

4 less than z

4 times as many

one-fourth the size

Multiple Choice

Write the expression.
Five dollars less than Tim's pay.

p + 5

p - 5

p ÷ 5

Multiple Choice

Write the expression.
Twelve fewer questions than were on the first test.

12 + q

q - 12

q x 12

q ÷ 12

Multiple Choice

Write the expression.
Three more cookies than are in the jar.

C x 3

C - 3

C + 3

C ÷ 3

Poll

I can write expressions or equations from a given word problem

SUPER confident

I know what to do, but could use the help

what's an expression and equation?

Multiple Choice

A number five times is twenty five.

3x = 25

4x = 25

5x = 25

6x = 24

Multiple Choice

The sum of x and ten is twenty.

x - 10 = 20

x + 10 = 20

x + 10 = 25

10x = 20

Multiple Choice

Two less than a number is fourteen.

x - 2 = 14

2 - x = 14

x - 2 = 15

2 - x = 13

Multiple Choice

Jo is thinking of a number. Four less than 9 times the number is 176. How could I find Jo's number?

9x - 4 = 176

4 - 9x = 176

9x + 4 = 176

4x + 9 = 176

Multiple Choice

2. Cheryl gets paid $8 per hour for her job at the record store. She made a total of $96 last week. Which equation models this situation?

96h = 8

h/96 = 8

8h = 96

h/8 = 96

Multiple Choice

What equation matches this situation?
John wants to buy an MP3 Player that costs $30.98. How much change did he receive if he gives the cashier $40.

40 + c = 30.98

30.98 + c = 40

c - 40 = 30.98

c - 30.98 = 40

Multiple Choice

1. Ted bought a dolphin poster for $12. He now has $5. Which choice models this situation?

m - 12 = 5

m - 5 = 12

m + 5 = 12

m + 12 = 5

Multiple Choice

4. There are 3 tennis balls in each can. The coach bought a total of 27 tennis balls. Which choice models this situation?

x/3 = 27

27x = 3

x/27 = 3

3x = 27

Multiple Choice

5. After dropping 5ºF, the temperature was 37ºF. Which choice models this situation?

d - 37 = 5

d + 5 = 37

d - 5 = 37

d + 37 = 5

Multiple Choice

Which choice models this situation?
Robyn had some video games, then bought 4 more. Now she has a total of 10 games.

v - 4 = 10

v + 4 = 10

10/4 = v

4v = 10

Multiple Choice

Last Friday Stefan had $35. Over the weekend, his parents gave him some money for washing the car and now he has $47. Write an equation to determine how much his parents paid him for washing the car.

$35-x=47$

$\frac{x}{35}=47$

$35+x=47$

$35x=47$

Multiple Choice

Which choice models this situation?

Jack needed new pencils for school today. He took 6 pencils from a new box of pencils. If there are 18 pencils left in the box, how many pencils were in the brand new box?

p - 6 = 18

p + 6 = 18

6p = 18

p/6 = 18

Writing Algebraic

Expressions and Equations

Objective

🎯write algebraic expressions and equations corresponding to a real-life situation

🎯Define and use multiple variables

🎯Understand the connection between different operational keywords.

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