defining variable writing equations

The sum of a number k and 5 is 11.

• 5k = 11

• 5 - k =11

• 5/k = 11

• 5 + k = 11

Tags

CCSS.6.EE.A.2

CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.EE.B.7

The difference of a number x and 2 is 7.

• x - 2 = 7

• x + 2 = 7

• 2x = 7

• 2/x = 7

Tags

CCSS.6.EE.A.2A

7 times a number a is 42.

• 7a = 42

• 7 + a = 42

• 7/a = 42

• 7 - a = 42

Tags

CCSS.HSA.CED.A.3

A number z divided by 7 equals 4

• z + 7 = 4

• z - 7 = 4

• 7z = 4

• z/7 = 4

Tags

CCSS.HSA.CED.A.3

What do the following terms mean:
is
equal
the same as 

• +
• -
• =
• x

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

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

Tags

CCSS.HSA.CED.A.3

Write an equation models the following statement:
 17 less than h equals 42

• 17-h=42
• h-17=42
• h+17=42
• 17+h=42

Tags

CCSS.HSA.CED.A.3

The space club is having some posters printed. The printer charges $250 plus $2 per poster. How can I figure out how many posters I could print for $1,000?

• 250x + 2 = 1000
• 1000 + 2x = 250
• 250 - 2x = 1000
• 2x + 250 = 1000

Tags

CCSS.7.EE.B.4A

Three desks and a bookcase together weigh 157 pounds. The bookcase weighs 34 pounds. Which equation could help me find out how much each desk weighs?

• 34 + 3 = 157
• 34x + 3 = 157
• 3x + 34 = 157
• x + 34 = 157

Tags

CCSS.HSA.CED.A.3

Oshgosh would like to buy a new pair of skates for $115. So far he has saved $40. If he earns $7.50 per hour, how could I find out how many hours he must work in order to buy the skates?

• 40 + 7.50x = 115
• 40x + 7.50 = 115
• 40 + 7.50 = 115
• 40 + 17.50x = 115

Tags

CCSS.HSA.CED.A.3