Three Digit Addition and Subtraction

Boulder Ridge is having an program. The room can hold 500 seats. There are 323 students and teachers who attend. How many seats will be leftover? Do we add or subtract?

• add

• subtract

• guess

• none of the above

Mary sold 234 pencils on Monday. She sold 150 more pencils on Tuesday . How many pencils did she sell on both days? How do we complete this problem?

• add both numbers

• subtract both numbers

• there is not enough information to complete the problem

• first add then subtract some

Mrs. Mullinax had 546 toy cars. She gave 271 cars to her friends. How many toy cars did Mrs. Mullinax have left?

• 275 toy cars

• 277 toy cars

• 735 toy cars

• 335 toy cars

Mr. Mullinax has 462 baseball cards. He wants to sell 181 of his cards online. How many baseball cards will he have left after he sells those cards?

• 543 baseball cards
• 281 baseball cards
• 321 baseball cards
• 283 baseball cards

NUI has 948 students. 521 of our students watched football games this weekend. How many students did NOT watch football games this weekend?

• 469 students

• 429 students

• 467 students

• 427 students

There were 730 books in the library. The water leaking from the roof ruined 214 of those books. How many books were still in good condition?

• 524 books

• 516 books

• 944 books

• 544 books

On Friday, 354 people went to the fair. On Saturday, 551 people went to the fair.

How many people went to the fair in all?

• 815

• 806

• 905

• 203

Silas has 328 beads. Carson has 124 beads. How many beads do they have in all?

• 451

• 452

• 552

• 521

Aniyah made 243 bracelets for all of her friends. Chase made 139 bracelets for all of his friends.

How many bracelets did they make together?

• 482

• 382

• 116

• 489

Harlan collected 225 marbles. Tori collected 294 marbles. How many marbles do they have in all?

• 419

• 328

• 71

• 519