1. Move the decimal point: Start with the number 69,900,000. Imagine the decimal point is at the end: 69,900,000. Move the decimal point 7 places to the left to get 6.99.
2. Exponent: Since you moved the decimal point 7 places to the left, the exponent will be 7.
3. Combine: The scientific notation is 6.99 x 10⁷.