Estimating & Checking: Decimal Subtraction Challenges

Lily has $45.75. She spends $12.50 on a book. How much money does she have left? Estimate the answer before calculating.

• $40.00

• $30.75

• $32.50

• $33.25

A baker made 120.5 cookies and sold 45.75 of them. How many cookies does the baker have remaining? Check if your answer is reasonable.

• 80.5

• 65.25

• 74.75

• 90.75

Tom ran 3.5 miles on Monday and 2.25 miles on Tuesday. How many miles did he run in total? Estimate the total distance first.

• 4.5 miles

• 6.0 miles

• 7.25 miles

• 5.75 miles

Sarah bought a shirt for $25.99 and a pair of pants for $39.50. If she paid with a $100 bill, how much change did she receive? Estimate the total cost of the clothes first.

• $15.50

• $20.00

• 34

• $50.00

A library had 150.75 books. After donating 25.5 books, how many books are left in the library? Check if your answer makes sense.

• 125.25

• 130.5

• 100.25

• 150.0

A farmer harvested 200.5 pounds of apples. He sold 75.25 pounds at the market. How many pounds of apples does he have left? Estimate before calculating.

• 200 pounds

• 100.25 pounds

• 125.25 pounds

• 150.75 pounds

Emma has $60.00. She buys a toy for $15.75 and a game for $22.50. How much money does she have remaining? Check if your answer is reasonable.

• $30.25

• $21.75

• $45.00

• $22.50

A car traveled 250.5 miles on a trip. If it used 75.25 gallons of gas, how many miles per gallon did it get? Estimate the miles per gallon first.

• 2.75 miles per gallon

• 3.32 miles per gallon

• 4.10 miles per gallon

• 5.50 miles per gallon

James has $80.00. He spends $23.45 on a video game and $15.99 on snacks. How much money does he have left? Estimate the total spent first.

• $50.56

• $36.45

• $62.00

• 41.00

A store had 500.00 items in stock. After selling 125.75 items, how many items are left? Check if your answer is reasonable.

• 250.25 items

• 374.25 items

• 500.00 items

• 375.00 items