Year 4 · Mathematics and statistics · Number
Adding and subtracting
Add and subtract up to four-digit numbers using mental strategies and column methods, including word problems.
Everything for this topic in one place
- 3D lesson: Adding and subtracting — Carry ten ones into a ten, swap a ten for ten ones, add and subtract four-digit numbers in columns and use smart mental strategies.
- Teacher presentation — slides to put on the projector.
- Worksheets at three levels — Tūī (support), Kererū (core) and Kea (extension), each with an answer key on the last page.
- Online practice — assign it to your class in the Crateclass classroom and the results come back by themselves.
Written for Te Mātaiaho, Phase 2 (Years 4–6), with New Zealand places, money and native birds.
Try before you sign up
See a full 3D lesson, a game and printable worksheets with no account on the free samples page. Teachers who sign up by 18 December 2026 get everything free until 9 April 2027.
More Year 4 maths topics
Place value to 10,000 and rounding · Multiplication and division · Fractions and tenths · Money · Number sentences and growing patterns · Area, perimeter and volume · Angles and time · Polygons, symmetry and transformations · Dot plots and bar graphs