Objective
Convert to and from standard form and perform calculations.
Calculator: Calculator allowed where labelled; non-calculator reasoning remains required.

Recall
Retrieve the key fact or method needed for standard form.
Core practice
Write 0.00000056 in standard form, then multiply it by 3×10⁵.
Reasoning
Explain why 12×10⁴ is not in standard form and rewrite it.
Exam-style
Solve an exam-style problem involving standard form. Show working, include a check and interpret your answer.