Natural Numbers: Properties, Bounds & Rules

KS3 natural numbers worksheets and teacher-led PowerPoint covering factors, multiples, primes, bounds, consecutive numbers and mathematical language.

This Cogwins pack uses a fixed 1–15 bead number line throughout, so students can focus on the mathematics and the wording of each question rather than learning a new visual format from page to page.

New elements are introduced one at a time and then combined gradually. Closely matched questions change one element while the rest stays the same, making the pack suitable for teaching, consolidation, intervention, catch-up, homework and revision.

Includes:

• 31 printable worksheets in Student and Teacher versions
• Matching teacher-led PowerPoint presentation
• Worked examples before new ideas are combined
• Completed Teacher answers

Topics include:

• Multiples and factors
• Common factors and highest common factor
• Odd and even numbers
• Common multiples
• Prime and composite numbers
• At least, at most, more than and less than
• Inclusive and strict bounds
• Consecutive numbers
• Letters standing for numbers
• Exclusions and exception language
• Reading completed number lines
• Mixed review

Designed primarily for ages 11–14 / KS3, while remaining usable across different curricula.

Want to try the approach first? View the Free Natural Numbers Sampler.