About this worksheet
Each sheet contains 20, 25 or 30 problems (your choice) and is generated at random. Press “New problems” as many times as you like; there is no limit and no account needed.
Worked example
28−24
- Ones: 8 − 4 = 4.
- Tens: 2 − 2 = 0.
- Check: 4 + 24 = 28.
Answer: 4
Teaching tips
- Start in the ones column every time.
- Check by adding the answer to the bottom number.
How to print or save as PDF
- Choose the options on the left (on a phone, above the preview).
- Press Print / Save as PDF.
- In the print window, pick your printer, or choose “Save as PDF” as the destination.
Only the worksheet and its answer key are printed; menus and buttons are hidden automatically.