SOL 5.19b - Algebra (+/-)

Which equation represents, “a box of crayons plus three more is eleven crayons”?

• b ÷ 3 = 11

• 3b = 11

• b + 3 = 11

• 3 + 11 = b

Which mathematical sentence represents the following word problem?

“How many cards are in a set of football cards if the set plus five more equals 62 cards, where f stands for the number of football cards in the set?”

• f – 5 = 23

• f x 5 = 62

• f + 5 = 62

• f ÷ 5 = 23

Which equation represents “a number, decreased by 36 is 248”?

• z + 36 = 248

• z – 36 = 248

• z x 36 = 248

• z ÷ 36 = 248

• 36 – z = 248

Mrs. Mowles has 37 batteries. Her students bring her some more. Now she has 45 batteries. Which equation shows this?

• 45 + 37 = B

• 37 + B = 45

• 45 + B = 37

• 37 – B = 45

Sue began with 27 watches in her watch collection. She sold b amount of her watches as was left with 21 watches. Which equation could be used to determine how many watches she sold?

• 27 – b = 21

• b + 27 = 21

• 27 + 21 = b

• 27 • 21 = b

Julie lost four beads from her bracelet. It still has 23 beads. Which number sentence could be used to find b, the number of beads in the bracelet?

• b + 4 = 23

• b x 4 = 23

• b ÷ 4 = 23

• b - 4 = 23

Julie has 17 songs on her mp3 player. She purchased more songs to get a total of 23 songs. Which equation would best be used to determine how

many songs were purchased?

• 17 + 23 = s

• 17 - s = 23

• 23 + s = 17

• 17 + s = 23

Two years ago, Lee's family had 6

members including his mother and

father. He now has a family of 8. Which

equation could be used to determine

how many new family members have

joined his family?

• 6 + f = 8

• 6 - f = 8

• 6 x f = 8

• 8 ÷ f = 6

Francis had $20 to go shopping. She bought a shirt for a certain amount

of money, m , and has $5 left. Identify each open sentence that

correctly describes this situation.

• m + 5 = 20

• m + 20 = 5

• 20 - m = 5

• 5 - m = 20

I am thinking of a number with 6

hundreds more than 5,133. Which equation best describes this

number?

• 5,133 + 60 = N

• N + 60 = 5,133

• 5,133 + 600 = N

• N + 600 = 5,133