Standard Form
Learn what standard form is and how to write and calculate with numbers in standard form. Let's get started! 🚀
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🛎️ What Is Standard Form (Scientific Notation)?
- A way to write very large or very small numbers so they are easier to work with.
- It always looks like A × 10ⁿ, where A is between 1 and 10
🛎️ How to Rewrite a Number into Standard Form?
- Move the decimal point so the number at the front is between 1 and 10.
- The number of places you move tells you the power of 10.
🛎️ How the Power of 10 Works?
- Decimal moved left → positive power (e.g. 384000 → 3.84 × 10⁵)
- Decimal moved right → negative power (e.g. 0.007 → 7 × 10⁻³)
🛎️ How to Multiply in Standard Form?
- Multiply the front numbers as normal.
- Add the powers of 10: 10⁷ × 10⁻¹² = 10⁻⁵
🛎️ How Do We Check a Standard Form Answer?
- The front number must be between 1 and 10.
- If not, move the decimal and adjust the power (e.g. 12 × 10³ → 1.2 × 10⁴)
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Interactive Activity
Standard form (scientific notation)
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