Back to ordinary form
Back to ordinary form:
- 7.2 × 10⁻³ becomes 0.0072.
- 4.1 × 10⁻⁵ becomes 0.000041.
- With a negative exponent, move the decimal left when returning to ordinary form.
Quick check
- Keep all the zeros you need so the decimal lands in the correct place.
- Your ordinary-form answer must still represent the same value as the original standard form.
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Back to ordinary form with large numbers
A positive exponent makes the ordinary number bigger.
Move the decimal to the right.
Easy examples:
- 6.3 × 10⁴ becomes 63 000.
- 2.08 × 10⁶ becomes 2 080 000.
- 9.5 × 10³ becomes 9 500.
Quick check
- Positive exponent means move the decimal right.
- Add zeros if you need more places.
- Your ordinary number should now be bigger than 1.