Author note — to cover

Sign rules for products and quotients of negatives, integers and decimals, including chains of three or more factors and mixed sign counts. Powers of negatives get their own page; negative indices are a different idea entirely, on negative-indices. Both tiers. (N2)

• Fluency — direct questions on multiplying and dividing negative numbers, limited to this lesson's stated scope (4 questions).
• Application — use the same skill in unfamiliar or contextual questions without introducing a later method (4 questions).
• Check — questions built around the exclusions and likely misconceptions named in the lesson brief (4 questions).