Real-Life Integer Challenges: Estimating Operations

A farmer has 120 apples. He sells 45 apples at the market. How many apples does he have left?

• 100

• 90

• 60

• 75

Lisa has 75 marbles. She finds 28 more marbles in her drawer. How many marbles does she have now?

• 80

• 120

• 103

• 95

A temperature dropped from 15 degrees to -5 degrees overnight. What is the change in temperature?

• 10 degrees

• 25 degrees

• 15 degrees

• 20 degrees

Tom read 30 pages of his book on Monday and 45 pages on Tuesday. How many pages did he read in total?

• 75

• 60

• 90

• 100

A store had 200 toys. They received a shipment of 50 more toys but sold 80 toys. How many toys are left in the store?

• 200

• 150

• 170

• 120

A mountain trail is 1500 meters high. If a hiker descends 600 meters, what is the new height of the hiker?

• 900 meters

• 800 meters

• 1500 meters

• 1200 meters

A school has 250 students. If 75 students go on a field trip, how many students remain at the school?

• 150

• 100

• 175

• 200

A baker made 200 cookies. He gave away 85 cookies to friends. How many cookies does he have left?

• 115

• 100

• 150

• 85

A video game costs $60. If a player has $25, how much more money do they need to buy the game?

• $50

• $20

• $35

• $45

During a sale, a store reduced the price of a jacket from $80 to $50. What is the amount of the discount?

• $30

• $10

• $40

• $20