Dividing Numbers in Scientific Notation
Scientific Notation: Learn
How to divide numbers in scientific notation:
- Divide the base numbers
- Subtract the exponents of the tens
- Adjust the base number to have one digit before the decimal point by raising or lowering the exponent of the tens
For example, divide 1.6x107 by 2x10-2:
- First, the base numbers are 1.6 ÷ 2 = 0.8
- Then, subtracting the exponents makes 7 - (-2) = 9
- Finally, 0.8x109 is not valid scientific notation because we can only have 1 non-zero digit left of the decimal. Moving the decimal 1 place to the right means decreasing the exponent by 1. Our final answer is 8x108
Scientific Notation: Practice
x10 ÷ x10 =
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Math Lessons by Grade
- Estimation and Mental Math
- Naming Numbers
- Percents and Ratios
- Place Value