Here are some worksheets on adding within 1000:
Addition Within 1000 – 2-Digit Numbers
| Numbers to Add | Answer |
| — | — |
| 40 + 30 | 70 |
| 50 + 20 | 70 |
| 30 + 50 | 80 |
| 20 + 40 | 60 |
| 80 + 20 | 100 |
| 90 + 10 | 100 |
| 70 + 30 | 100 |
Addition Within 1000 – 3-Digit Numbers
| Numbers to Add | Answer |
| — | — |
| 100 + 200 | 300 |
| 200 + 100 | 300 |
| 150 + 250 | 400 |
| 300 + 100 | 400 |
| 250 + 150 | 400 |
| 400 + 200 | 600 |
| 500 + 100 | 600 |
Word Problems – Adding Within 1000
| Problem | Numbers to Add | Answer |
| — | — | — |
| Tom has 150 pencils in his pencil case. His friend gives him 25 more pencils. How many pencils does Tom have now? | 150 + 25 | 175 |
| Sarah has 120 books on her bookshelf. She buys 50 more books. How many books does Sarah have now? | 120 + 50 | 170 |
| A toy car costs $100. If you buy two toy cars, how much will you pay in total? | 100 + 100 | 200 |
| A student has 250 stickers in her sticker book. She gets 50 more stickers from her friend. How many stickers does the student have now? | 250 + 50 | 300 |
These worksheets cover addition within 1000 with 2-digit and 3-digit numbers, as well as word problems that require adding within 1000. You can print them out or use them as a reference to help you with your math calculations.
