What's on this worksheet
Each problem adds three numbers from 1 to 9 with a sum of 20 or less. Each sheet comes with an answer key on a separate page.
Teaching tips
- Ask "Which two numbers would you add first?" before solving. There is no single right order.
- Circle pairs that make 10, such as 3 and 7, to show the shortcut.
- The stacked layout prepares students for adding longer columns of numbers later.
How to use this worksheet maker
Press New worksheet for a fresh set of problems, then Print. To save a PDF instead, choose "Save as PDF" in the print window. Every sheet has a short code in the bottom corner. Copy the link to a sheet and you can print exactly the same problems again later, which is handy for retakes and for sharing with other teachers.
Common Core alignment: 1.OA.B.3 (Grades 1–2).