Real-Life Equations: Using Properties of Operations

Maria has 3 times as many apples as John. If John has x apples, write an expression for the number of apples Maria has. If John gives 4 apples to Maria, how many apples does Maria have now?

• x + 4

• 3x + 4

• 3x - 4

• 2x + 4

A book costs $15. If you buy 2 books and a magazine that costs $5, write an expression for the total cost. If you have $50, how much money will you have left after your purchase?

• $10

• $15

• $25

• $30

A rectangle has a length of 4 meters and a width of w meters. Write an expression for the perimeter of the rectangle. If the width is increased by 2 meters, what will be the new perimeter?

• 12 + 2w

• 4w

• 10 + w

• 8 + 2w

Samantha has 10 more than twice the number of stickers that Alex has. If Alex has z stickers, write an expression for the number of stickers Samantha has. If Alex gives 3 stickers to Samantha, how many stickers does Samantha have now?

• 2z + 10

• z + 13

• 2z + 13

• 3z + 10

A car travels 60 miles per hour. Write an expression for the distance traveled in t hours. If the car travels for 3 hours, how far does it go?

• 180 miles

• 150 miles

• 240 miles

• 120 miles

A pizza is cut into 8 equal slices. If you eat x slices, write an expression for the remaining slices. If you eat 3 slices, how many slices are left?

• 6

• 2

• 5

• 4

Liam has 5 more than three times the number of marbles that Noah has. If Noah has m marbles, write an expression for the number of marbles Liam has. If Liam gives 2 marbles to Noah, how many marbles does Liam have now?

• 4m + 1

• 3m + 3

• 3m + 5

• 2m + 7

A school has 200 students. If 25 students join the school, write an expression for the new total number of students. If 10 students leave the school, what is the final number of students?

• 225

• 210

• 215

• 200

A gardener plants 4 rows of flowers with x flowers in each row. Write an expression for the total number of flowers. If the gardener plants 2 more flowers in each row, what will be the new total number of flowers?

• 4x + 8

• 3x + 6

• 4x + 4

• 2x + 8