Variables, Expressions and Equations SOL 5.19

Chrissy bought 29 cupcakes. After her friends ate some, she had 12 cupcakes left. How many cupcakes, n, does she have left?

• 29 x 12 = n

• 29 / 12 = n

• 29 - n = 12

• 29 + 12 = n

Rick reads 28 pages each day during reading. How many days, n, would it take him to finish his book which is 112 pages long?

• 28 + 112 = n

• 112 - 28 = n

• 28 x n = 112

• 112 / n = 28

A giraffe in the circus are 120 apples in 6 days. How many apples did he eat in just one day, c?

• 120 x 6 = c

• 120 - 6 = c

• 120 / 6 = c

• 120 + c = 6

Bob has 28 stickers. When he puts his stickers together with Emily's, they have a total of 57 stickers. How many stickers, s, does Emily have?

• 28 - s = 57

• 57 + 28 = s

• 28 + s = 57

• 28 x s = 57

Which equation represents "a number, p, decreased by 54 is 327"?

• p - 54 = 327

• 54 - p = 327

• p + 54 = 327

• 54 / p = 327

If k represents a number, which represents "23 times a number"?

• 23 - k

• k / 23

• 23 x k

• k + 23

Wilmer has 25 marbles that will be separated into g equal groups. Which expression represents the number of marbles in each group?

• g + 25

• g x 25

• 25 - g

• 25 / g

Which equation represents "a number, z, decreased by 36 is 248"?

• z - 36 = 248

• z + 36 = 248

• 36 - z = 248

• z / 36 = 248

Francis had $20 to go shopping. She bought a shirt for a certain amount of money, m, and has $5 left. What equation correctly describes the situation?

• m + 20 = 5

• 20 - m = 5

• m + 5 = 20

• 5 - m = 20

What is the variable in 2x = 6?

• 2

• x

• =

• 6