Decimals & Standard Form
Standard form writes huge or tiny numbers neatly: A × 10ⁿ, with 1 ≤ A < 10.
Ordering decimals+ and − decimals× and ÷ decimalsPowers of 10Standard form
📖 Learn
× / ÷ by 10
Digits move one place left (×) or right (÷) for each zero.
Standard form
3,400 = 3.4 × 10³. 0.005 = 5 × 10⁻³.
Decimal × decimal
0.3 × 0.2: do 3 × 2 = 6, count 2 decimal places → 0.06.
Worked example
Write 52,000 in standard form
- 1A must be between 1 and 10: 5.2
- 2Decimal moved 4 places
- 35.2 × 10⁴ ✅
⭐ Practise
π
Ask Professor Pi
Type a question or say where you're stuck. You'll get hints, not just answers!
AI-powered tutor — it can make mistakes, so check with your teacher if unsure.