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Step-by-step guide on adding and subtracting numbers in scientific notation when exponents are equal.

A yellow educational slide titled "Adding & Subtracting in Scientific Notation" explaining steps for operations when exponents are the same, with examples of addition and subtraction.

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Show Answer Key & Explanations Step-by-step solution for: Adding & Subtracting in Scientific Notation - ppt download

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- When adding or subtracting numbers in scientific notation, first check if the exponents are the same.
- If the exponents are the same, add or subtract the coefficients (the numbers before the “× 10^”) and keep the common power of 10.
- After performing the operation, if the resulting coefficient is not between 1 and 10, adjust the decimal point and exponent to convert the answer back into proper scientific notation.

Parent Tip: Review the logic above to help your child master the concept of adding and subtracting scientific notation.

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