Best Answer

-You must memorize

-To add 2 integers with different signs, find the difference of their absolute value

-To subtract an integer, add it's opposite

Q: What are the rules for adding and subtracting 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.

use numbers

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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- 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

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

your mom is 2

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

use numbers

David Missoula's

When subtracting negative numbers change the subtraction sign to a plus and change the second number (which would appear to be positive) to a negative. ex. -14 - 7=?/-14 + -7= -21 When adding negative numbers just add them as they appear. ex. -2 + -5= -7

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

a difference

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