Scientific Notation

Reading and writing very large and very small numbers as a coefficient between 1 and 10 times a power of ten.

8 questions, free, marked as you go with a worked explanation on every one.

What this covers

Write 45,000 in scientific notation.
Write 3.2 × 10⁻³ as an ordinary decimal number.
Which of these is correctly written in scientific notation?
What is the exponent when 7,200,000 is written in scientific notation?
Use the table below, giving the diameter of three particles in scientific notation. Which particle has the smallest diameter?
Multiply (2 × 10³) by (3 × 10²), and give the result as an ordinary number.
A number is written 5.5 × 10⁻². Which ordinary number does it equal?
Divide (8 × 10⁶) by (2 × 10²), and give the result as an ordinary number.