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In order to add or subtract numbers with exponents, the exponents must be the same.

In order to multiply numbers with exponents, you complete the multiplication and add the exponents.

In order to divide numbers with exponents, you complete the division, and subtract the bottom exponent from the top exponent.

Examples:

Addition: 4.6 x 107 + 2.5 x 109 = 0.046 x 109 + 2.5 x 109 = 2.546 x 109

Subtraction: 6.7 x 108 - 2.1 x 105 = 6.7 x 108 - 0.0021 x 108 = 6.66979 x 108

Multiplication: 5.3 x 102 x 8.4 x 106 = 44.52 x 102+6 = 44.52 x 108 = 4.452 x 109

Division: 6.2 x 1012/3.1 x 106 = 2.0 x 1012-6 = 2.0 x 106

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Related Questions

What are the rules governing real numbers?

There are many. There are those that deal with the four basic binary operations, then there are rules governing exponents and logarithms.


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What are the rules adding and subtracting exponents?

When multiplying something with exponents, you add it. When dividing something with exponents, you subtract it.


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In algebraic equations, exponents can contain variables. They can be solved for by using logarithmic rules for exponents.


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It wasn't necessary to 'create' any rules. They follow logically from the definition of exponents.


When adding numbers with fraction exponents do you add the exponents?

Fractional exponents follow the same rules as integral exponents. Integral exponents are numbers raised to an integer power.


What are the rules of multiplying and division on algebraic expression?

there are different rules to follow on how to multiply and divide algebraic expressions. but its basics concerns on what kind of terms you are using and the deep concern about its exponents. when you multiply or divide, it is very basic to utilize the distributive method, exponents are being added when we multiply, while subtracted when we divide.


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