3-Digit Addition & Subtraction: Mastering Regrouping

A bakery made 245 cookies in the morning and 378 cookies in the afternoon. How many cookies did they make in total?

• 600

• 700

• 500

• 623

There are 512 apples in a basket. If 278 apples are taken out, how many apples are left in the basket?

• 400

• 300

• 234

• 256

A library has 634 books. If 289 books are checked out, how many books remain in the library?

• 634

• 289

• 345

• 456

A toy store had 456 toys. They received a shipment of 275 more toys. How many toys does the store have now?

• 731

• 500

• 7310

• 600

A farmer harvested 823 carrots. He sold 459 carrots at the market. How many carrots does he have left?

• 300

• 500

• 364

• 400

A school has 745 pencils. If 368 pencils are given to students, how many pencils are still in the school?

• 377

• 368

• 500

• 400

A zoo has 512 visitors in the morning and 289 visitors in the afternoon. How many visitors did the zoo have in total?

• 750

• 801

• 800

• 790

A factory produced 678 toys in January and 345 toys in February. How many toys did the factory produce in these two months?

• 1023

• 678

• 345

• 1000

A gardener planted 456 flowers. If 289 flowers wilted, how many flowers are still healthy?

• 200

• 150

• 167

• 300

A bookstore had 932 books. If they sold 478 books, how many books do they have left?

• 454

• 600

• 500

• 400