Q: How do you add and subtract integers with decimals?

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It is important to add and subtract integers: to get a new integer value in mathematics .

to subtract an integer, add its opposite or additive inverse.

add them or subtract them, as appropriate!

Because otherwise you would only know how to subtract and add with the same integers. Not a particularly useful skill unless just those integers turned up!

add, subtract, multiply, divide

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It is important to add and subtract integers: to get a new integer value in mathematics .

you can add subtract multiply and divide them.

to subtract an integer, add its opposite or additive inverse.

add them or subtract them, as appropriate!

You write down the numbers you want to add and subtract, making sure the decimal points are aligned. Then, you add (or subtract) EXACTLY as you would add or subtract integers. The decimal point in the solution should be aligned with the decimal points in the original numbers.

how do we add or subtract decimal? its the same thing as using regular subraction and addition. Example: 12.4 +8.1 ______ =20.5 The same in subtraction! Just keep the decimals alligned!

Because otherwise you would only know how to subtract and add with the same integers. Not a particularly useful skill unless just those integers turned up!

add, subtract, multiply, divide

When adding negative integers, you subtract. (2+-1=1) When subtracting negative integers, you add. (2--3=5)

When you add, subtract, or multiply integers, you get integers. When you divide one integer by another one, you may or may not get an integer.

Integers

+2 + -1= 1