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Q: What are the rules for adding and subtracting numbers?

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- when adding or subtracting in scientific notation, you must express the numbers as the same power of 10. This will often involve changing the decimal place of the coefficient.

adding and subtracting integers is when you add and minus 2 numbers

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Subtracting a negative is the same as adding the equivalent positive. For example, subtracting minus 10 is the same as adding 10.

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Ensure that the denominators are the same when adding or subtracting fractions.

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Adding, Subtracting, Multiplying and Dividing

Integers are whole numbers, both positive and negative. Therefore, adding and subtracting integers would be adding and subtracting whole numbers. Examples: 8+2 -8+2 8-2 -8-2

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