Convert to and from scientific notation
Write very large and very small numbers in scientific notation, and convert scientific notation back to standard form. Unlimited questions, five difficulty levels, and a full worked solution every time — free.
Try one
Write 420,000 in scientific notation.
- 4.2 · 105
- 4.2 · 106
- 4.2 · 104
- 4.2 · 10-5
Answer: 4.2 * 10^5
See one solved, step by step
Write 350 in scientific notation.
- 3.5 · 101
- 3.5 · 10-2
- 3.5 · 102
- 3.5 · 103
📘 Worked solution
1Standard form: 350Start with the number as given.
2Move the decimal point so only 3.5 remains before it.Scientific notation always has a single digit from 1-9 before the decimal point.
3You moved it 2 places to the left.Moving left (the number is 10 or more) makes the exponent positive.
4= 3.5 · 102Write the mantissa times that power of ten.
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