Mastering Three-Digit Addition & Subtraction Problems

Lily has 245 marbles. She buys 178 more marbles. How many marbles does she have now?

• 423

• 400

• 500

• 350

A bookstore had 512 books. They sold 236 books on Saturday. How many books are left in the store?

• 300

• 276

• 512

• 236

Tom collected 367 stickers. He gave 129 stickers to his friend. How many stickers does Tom have now?

• 238 stickers

• 238

• 150 stickers

• 200 stickers

A farmer has 450 apples. He picked 275 more apples. How many apples does he have in total?

• 725

• 800

• 600

• 500

Sarah read 123 pages of her book. Then she read 256 more pages. How many pages did she read altogether?

• 379

• 256

• 123

• 500

In a toy store, there were 678 toys. If 345 toys were sold, how many toys remain in the store?

• 500

• 250

• 400

• 333

A school has 432 students. If 198 students go on a field trip, how many students are left at the school?

• 432

• 234

• 300

• 198

Emma has 289 crayons. She buys 145 more crayons. How many crayons does she have now?

• 400

• 434

• 500

• 300

A library had 600 books. They donated 215 books to another library. How many books are left?

• 400

• 350

• 500

• 385

Jack has 512 baseball cards. He traded 134 cards with his friend. How many baseball cards does Jack have now?

• 378

• 450

• 300

• 400