One-Step Equations (Addition/Subtraction)

One-Step Equations (Addition/Subtraction)

Review Lesson

Inverse Operations

• The inverse operation means to complete the OPPOSITE operation

• Addition is the inverse of Subtraction

• Subtraction is the inverse of Addition

Multiple Choice

Marcus has 25 tickets to sell for a fundraiser by Friday. So far, he has sold 9 tickets. How many tickets does he still have to sell?

• t - 9 = 25

• t + 9 = 25

Multiple Choice

Taylor has read 125 pages in a book. The book has a total of 262 pages. How many pages does she have left to read to finish the book?

• p - 125 = 262

• p + 125 = 262

Multiple Choice

Last week Kevin had 42 dollars. He washed cars over the weekend to earn some extra money and now has $95. How much money did Kevin earn washing cars?

• x - 42 = 95

• x + 42 = 95

Multiple Choice

After 4 students joined a class, the class has 32 students. Which equation can be used to find n, the number of students in the class before the new 4 students joined?

• n - 4 = 32

• n + 4 = 32

Multiple Choice

Last Friday Trevor had $29. Over the weekend he received some money for cleaning the attic. He now has $41. How much money he received for cleaning the attic?

• 29 + m = 41

• 29 - m = 41

Multiple Choice

Ted bought a dolphin poster for $12. He now has $5. How much money did Ted take to the aquarium?

• m - 12 = 5

• m - 5 = 12

• m + 5 = 12

• m + 12 = 5