Exponents and Scientific Notation

🔹 What Is It?

• An exponent shows how many times to multiply a number by itself.
  
  

• Scientific notation is a shorter way to write really big or really small numbers using powers of ten.
  
  

🧩 Clue to Remember

• Exponent = repeated multiplication
  
  

• Scientific notation = small shortcut for big numbers
  
  

🔹 Example

• Three to the power of four = three times three times three times three = eighty-one
  
  

• Ten million = 1 × 10⁷ in scientific notation
  
  

💡 Why It Matters

This helps us work with space, science, data, and technology, where numbers can be very large or very small.