Three-Digit Addition and Subtraction Challenges

Lily has 245 marbles. She buys 378 more marbles. How many marbles does she have now?

• 500

• 623

• 600

• 700

Tom had 512 stickers. He gave away 129 stickers to his friends. How many stickers does he have left?

• 400

• 450

• 383

• 350

A bookstore sold 456 books in January and 289 books in February. How many books did they sell in total?

• 500

• 745

• 600

• 789

Sarah collected 675 stamps. She lost 148 stamps. How many stamps does she have now?

• 527

• 600

• 525

• 500

A toy store had 823 toys. They sold 256 toys and then received a shipment of 145 new toys. How many toys are in the store now?

• 567

• 678

• 900

• 712

In a school, there are 432 students in the morning session and 289 students in the afternoon session. How many students are there in total?

• 500

• 600

• 721

• 800

A farmer harvested 564 apples. He sold 278 apples at the market. How many apples does he have left?

• 300

• 250

• 400

• 286

A library has 1,250 books. They donated 367 books to a local school. How many books does the library have now?

• 750

• 1,000

• 900

• 883

Emma read 345 pages of a book. Then she read 278 more pages. How many pages did she read in total?

• 623

• 600

• 500

• 400

A bakery made 789 cookies. They sold 456 cookies in the morning and 123 cookies in the afternoon. How many cookies are left?

• 400

• 150

• 210

• 300