What's on this worksheet
Two two-digit numbers set out in columns. Some sums need an exchange and some do not. Each sheet comes with an answer key on a separate page.
Teaching tips
- Many UK schools write the exchanged ten small, under the answer line of the tens column. Follow the layout your school uses.
- Ask children to estimate first by rounding each number to the nearest 10.
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.
National Curriculum: Year 3: add and subtract numbers with up to three digits, using formal written methods of columnar addition and subtraction.