Day 1: Variables Expressions and Equations

Chrissy bought 29 cupcakes. After her friends ate some, she had 12 cupcakes left. Which equation matches this situation?

• 29 x 12 = n

• 29 ÷ 12 = n

• 29 - n = 12

• 29 + 12 = n

Bob has 28 stickers. When he puts his stickers together with Emily's, they have a total of 57 stickers. Which equation matches this situation?

• 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

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

15 less than a number

• 15 - s

• s - 15

• 15 x s

• s + 15

5 less than a number

• 5 - c

• 5c

• c - 5

• c + 5

Sarah had 60 apples in her basket. After eating y apples, she has 35 apples left. Which equation represents how many apples she ate?

• 60 + y = 35

• 60 - y = 35

• y + 35 = 60

• 60 ÷ y = 35

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

• C x 3
• C - 3
• C + 3
• C ÷ 3

Tags

CCSS.5.OA.A.2