Highest Common Factor - scaffolded worksheet

A worksheet (pdf) and editable ppt file on finding the Highest Common Factor (HCF) of 2 numbers. There are 7 questions in total across 3 pages. There are boxes for students to write in the factors of each number before selecting the highest common factor. Some factors are pre-populated for students to guide them along the way. Fewer factors are given as the questions progress. Best printed as a booklet so students can fold and stick in their exercise books. Aimed at lower-ability sets. Could be used as a homework/cover worksheet too.