Select the equation that best represents the situation: Mrs. Lamb is baking a cake. The recipe calls for nine cups of flour. She already put in two cups.

• r + 2 = 9

• 2r = 9

Tags

CCSS.HSA.CED.A.3

Charlie has some candy. He shares ten pieces with Betsy and is left with 24 pieces. Which equation should I use to solve this problem?

• x +10 = 24

• x - 10 = 24

• 10x = 24

• x + 24 = 10

Tags

CCSS.HSA.CED.A.3

Solve for x
17 = x + 3

• x = 20

• x = 14

• x = 13

• x = 19

Tags

CCSS.6.EE.B.7

x - 4 = 17

• x = 21

• x = 13

• x = 19

• x = 24

Tags

CCSS.6.EE.B.7

x + 24 = 44

• x = -20

• x = 68

• x = 20

• x = -68

Tags

CCSS.6.EE.B.7

To solve the equation
x + 5 = 8
 I would ....

• subtract 5 from x

• subtract 5 from both sides

• subtract 5 from one side and add 5 to the other

• add 5 to both sides

Tags

CCSS.6.EE.B.7

in 3a =12,
I would....

• add 3 to both sides

• subtract 3 from both sides

• divide both sides by 3

• divide just the right by 3

Tags

CCSS.HSA.REI.A.1

Solve the equation
3x = 27. 

• x = 24

• x = 81

• x = 9

Tags

CCSS.6.EE.B.7

Carol’s class had 25 students on roll. After some new students join her class, the number of students increases to 36. Write an equation to determine the number of students who joined Carol's class.

• 25 + x = 36

• x – 36 = 25

• 36x = 25

• 36 + x = –25

Tags

CCSS.HSA.CED.A.3

Which choice models this situation? Marcus needs to sell 25 tickets to a fundraiser by Friday. So far, he has sold 9 tickets. How many tickets does he still need to sell?

• t - 9 = 25

• t + 9 = 25

• 9t = 25

• t/9 = 25

Tags

CCSS.HSA.CED.A.3