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HomeQuestion 1FluencyCore
Original practice · Free Online RevisionSkill · conversion
Write 0.0000725 in standard form.
Number & ProportionCoreMaths revision
Standard Form
Use scientific notation to compare scales and calculate with very large or small quantities.
Focus points
✓Convert to and from scientific notation.
✓Calculate using powers of ten.
✓Judge order of magnitude.
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Practice setQuestion lineup
Try each question first, reveal a hint when you need one, then check the worked answer. Mark them done as you go — finish the set to claim your chips.
8 revision questions
Question 2FluencyCore
Original practice · Free Online RevisionSkill · conversion
Write 6.03 × 10⁷ as an ordinary number.
Question 3FluencyCore
Original practice · Free Online RevisionSkill · multiplication
Calculate (3×10⁵)(4×10⁻³) in standard form.
Question 4FluencyCore
Original practice · Free Online RevisionSkill · division
Calculate (8.4×10⁷)/(2.1×10³).
Question 5FluencyCore
Original practice · Free Online RevisionSkill · multi-step standard form
Write 0.00000091 / 3500 in standard form.
Question 6ApplicationCore
Original practice · Free Online RevisionSkill · scientific notation application
The distance to a star is 4.2×10¹³ km. Light travels at 3.0×10⁵ km/s. Approximately how many seconds does light take?
Question 7ReasoningCore
Original practice · Free Online RevisionSkill · magnitude reasoning
Which is larger, 7.9×10⁻⁶ or 1.2×10⁻⁵?
Question 8ChallengeStretch
Original practice · Free Online RevisionSkill · order of magnitude
Estimate the order of magnitude of (6.2×10⁸)(4.9×10⁻³).