Edgar spent $30 on a magazine and some candy bars. If the magazine cost $6 and each candy bar cost $3, then how many candy bars did he buy? c = t h e n u m b e r o f c a n d y b a r s c=the\ number\ of\ candy\ bars c = t h e n u m b e r o f c a n d y b a r s

30 = 6 + 3 c 30=6+3c 3 0 = 6 + 3 c

30 = 6 c + 3 30=6c+3 3 0 = 6 c + 3

30 = 6 c + 3 c 30=6c+3c 3 0 = 6 c + 3 c

Tyon won 37 super bouncy balls playing hoops at his school's game night. Later, he gave two to each of his friends. He only has 7 remaining. How many friends does he have? f = n u m b e r o f f r i e n d s h e h a s f=number\ of\ friends\ he\ has f = n u m b e r o f f r i e n d s h e h a s

37 − 2 f = 7 37-2f=7 3 7 − 2 f = 7

37 f − 2 = 7 37f-2=7 3 7 f − 2 = 7

37 − 2 = 7 f 37-2=7f 3 7 − 2 = 7 f

37 − 2 = 7 37-2=7 3 7 − 2 = 7

Derick spent $14 on a magazine and some notepads. If the magazine cost $5 and each notepad cost $3, then how many notepads did he buy? n = n u m b e r o f n o t e p a d s n=number\ of\ notepads n = n u m b e r o f n o t e p a d s

14 = 5 + 3 n 14=5+3n 1 4 = 5 + 3 n

14 = 5 n + 3 14=5n+3 1 4 = 5 n + 3

14 n = 5 + 3 14n=5+3 1 4 n = 5 + 3

You had $24 to spend on eight raffle tickets. After buying them you had $8. How much did each raffle ticket cost? r = cos ⁡ t o f a r a f f l e t i c k e t r=\cos t\ of\ a\ raffle\ ticket r = cos t o f a r a f f l e t i c k e t

24 − 8 r = 8 24-8r=8 2 4 − 8 r = 8

24 r − 8 = 8 24r-8=8 2 4 r − 8 = 8

24 − 8 = 8 24-8=8 2 4 − 8 = 8

24 r − 8 r = 8 24r-8r=8 2 4 r − 8 r = 8

Emarie had $24 to spend on seven pencils. After buying them he had $10. How much did each pencil cost? p = t h e cos ⁡ t o f o n e p e n c i l p=the\ \cos t\ of\ one\ pencil p = t h e cos t o f o n e p e n c i l

24 − 7 p = 10 24-7p=10 2 4 − 7 p = 1 0

24 p − 7 = 10 24p-7=10 2 4 p − 7 = 1 0

24 − 7 = 10 p 24-7=10p 2 4 − 7 = 1 0 p

24 p − 7 p = 10 24p-7p=10 2 4 p − 7 p = 1 0

Creating Equations with Variables

Quiz

•

Mathematics

•

8th Grade

•

Practice Problem

•

Hard

•

CCSS

HSA.CED.A.3, 6.EE.B.7, 6.EE.B.5

+4

Standards-aligned

Mr. Thomas

Used 20+ times

FREE Resource

20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

82 added to a number is the same as 36

82=36

82+36=x

t+82=36

None of the above

Tags

CCSS.6.EE.B.5

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

The product of 12 and a number is the same as 2 removed from a number

12x=x+2

12x=2-x

12-2=x-2

12x= x-2

Tags

CCSS.6.EE.A.2

CCSS.6.EE.B.6

CCSS.6.EE.B.7

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

a number halved is equal to 22 fewer than a number

b⁄2 = 22-b

2b =22- b

n⁄2=n-22

None of the above

Tags

CCSS.6.EE.A.2

CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.EE.B.7

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

x/9=28

9 times a number is 28

A number multiplied by 9 equals 28

A number removed from 9 is 28

The quotient of 9 and a number is 28

Tags

CCSS.6.EE.B.7

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

120 more than twice a number is the same as halve a number removed from 8

2t+120= t⁄2-8

120+2t = t⁄2-8

2t+120 = 8-t⁄2

Be humble...sit down

Tags

CCSS.6.EE.A.2

CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.EE.B.7

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Mrs. Rucker made 24 tacos. Her family ate 13 of them. Then Mrs. Rucker made 12 more tacos. Which equation can be used to find t, the number of tacos she had then?

24 + 13 - 12 = t

24 + 13 + 12 = t

24 - 13 + 12 = t

24 - 13 - 12 = t

Tags

CCSS.HSA.CED.A.3

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

The total weight of a computer hard drive, a monitor, and a keyboard is 362 ounces. The hard drive weighs 318 ounces and the monitor weighs 33 ounces. Which equation represents the situation where k is the weight of the keyboard?

362 = 318 + 33 - k

362 = 318 + 33 + k

362 = 318 + k

362 = 318 - k

Tags

CCSS.HSA.CED.A.3

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Creating Equations with Variables

20 questions

82 added to a number is the same as 36

The product of 12 and a number is the same as 2 removed from a number

a number halved is equal to 22 fewer than a number

x/9=28

120 more than twice a number is the same as halve a number removed from 8

Mrs. Rucker made 24 tacos. Her family ate 13 of them. Then Mrs. Rucker made 12 more tacos. Which equation can be used to find t, the number of tacos she had then?

The total weight of a computer hard drive, a monitor, and a keyboard is 362 ounces. The hard drive weighs 318 ounces and the monitor weighs 33 ounces. Which equation represents the situation where k is the weight of the keyboard?

Mrs. Bryant has 73 stickers. She gives one to each of her students. If she has 20 students, how many stickers does she have left?

Twenty of Erin's friends each agreed to donate $5 to her fundraiser. Which equation can be used to determine d, the amount of money Erin's friends donated to her fundraiser?

At Lincoln Elementary School, the fifth-grade students have a total of 325 pets. Of these pets, 250 are some kind of pet other than cats. Which equation could be used to determine the number of pets that are cats, c?

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