* Standard Form: 150,000,000
* Scientific Notation: 1.5 x 10⁸
Explanation:
1. Move the decimal: Start with the decimal point at the end of the number (150,000,000.) and move it to the left until you have a number between 1 and 10 (1.5).
2. Count the moves: You moved the decimal 8 places to the left.
3. Multiply by 10 raised to the power of the moves: Since you moved the decimal to the *left*, the exponent is positive.
Therefore, one hundred and fifty million in scientific notation is 1.5 x 10⁸.
