Fun Addition and Subtraction Worksheet for 11-Year-Olds | Engaging Math Practice

Instructions

Complete the following addition and subtraction problems. Show your work wherever necessary.

Addition Problems

1. 256 + 143 = ?
2. 1,345 + 678 = ?
3. 789 + 456 + 234 = ?
4. 5,002 + 303 = ?
5. 1,024 + 876 = ?

Subtraction Problems

1. 784 - 321 = ?
2. 2,500 - 1,275 = ?
3. 1,450 - 932 = ?
4. 3,000 - 1,890 = ?
5. 1,005 - 507 = ?

Mixed Problems

1. 345 + 678 - 123 = ?
2. 1,600 - 734 + 288 = ?
3. 900 + 1,250 - 607 = ?
4. 2,000 - 1,340 + 657 = ?
5. 452 + 298 - 100 = ?

Challenge Problem

If you have 3,250 marbles and you give away 1,128 marbles, then buy 450 more, how many marbles do you have now?

Reflection

Write one sentence about a time when you used addition or subtraction in real life.