Year 9 · Phase 4 (Years 9-10) · Number
Percentages, ratios and rates
What the teaching sequence covers here
Find fractions and percentages of amounts and the whole from a part, express one number as a fraction or percentage of another, increase or decrease a number by a proportion, write and simplify whole-number ratios, divide quantities in a given ratio, and scale ratios and rates up or down.
This is ChalkBee's own paraphrase of the official teaching sequence, not the Ministry's wording. Tahurangi curriculum content is Crown copyright, Ministry of Education, licensed CC BY-NC 4.0, so we describe it in our own words and cite the source: NZC Mathematics and Statistics Phase 4 (Years 9-10). Always check the official page for the exact requirement.
nz-p4-num-07. The Ministry of Education does not assign alphanumeric codes to teaching-sequence statements; this id is a stable site-internal reference.Worksheet gap
ChalkBee does not yet have a suitably matched Year 9 worksheet for this part of the teaching sequence. You can still build practice from the worksheet generator, and we would rather show a gap than overclaim coverage.