Author note — to cover

Entering standard-form values with the times-ten-to-the-power key, reading display output like 2.5E-3 back into standard form, and never writing calculator notation as an answer. Assumes standard-form conversion; non-calculator standard-form arithmetic lives on the standard-form sibling pages. Both tiers. (N9, N14)

• Fluency — direct questions on standard form on a calculator, 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).