Estimating Sums: Fun with Three-Digit Additions!

Lily has 245 stickers, and she buys 132 more. How many stickers does she have now?

• 132

• 377

• 500

• 245

Tom has 312 marbles, and he finds 145 more in the park. How many marbles does Tom have altogether?

• 312 marbles

• 457

• 145 marbles

• 457 marbles

A library has 456 books, and it receives a donation of 237 books. How many books are in the library now?

• 693

• 700

• 450

• 689

Sarah collected 128 seashells, and her friend gave her 256 more. How many seashells does Sarah have in total?

• 384

• 256

• 128

• 512

In a toy store, there are 345 toy cars and 267 toy trucks. How many toy vehicles are there in total?

• 400

• 350

• 612

• 500

A farmer has 123 apples, 234 oranges, and 145 bananas. How many pieces of fruit does he have altogether?

• 300

• 502

• 456

• 400

At a school, there are 210 students in the first grade and 315 students in the second grade. How many students are there in total?

• 420

• 600

• 480

• 525

A bakery sold 456 cupcakes in the morning and 289 cupcakes in the afternoon. How many cupcakes did they sell in total?

• 500

• 800

• 745

• 600

Emma has 378 crayons, and she gives 145 to her friend. How many crayons does Emma have left?

• 2330

• 378

• 233

• 145

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

• 750

• 600

• 801

• 900