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One way to define subtraction is: subtracting means to add the additive inverse of the number to be subtracted,

More formally, if a and b are numbers, a subtract b ( wriitten a - b ) means

a + (-b) where -b denotes the unique number such that b + (-b) = 0.

Summary: a - b = a + (-b) .

Comment: This definition is more useful for theory than practice. Students are usually taught how to subtract and then use that knowledge to add negative numbers.

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Q: How do you change subtraction into addition?
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In x - 3 does absolute value change the subtraction into addition?

no, the absolute value does not change the subtraction into addition. it does however, change the difference to positive ( if the difference is negative)


Does addition and subtraction of vectors obey the commutative law?

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Why when subtracting a negative number must you change the subtraction sign to an addition sign?

Because a negative negative is the same a a positive, and because of the definition of subtraction and addition.


Who discovered addition or subtraction?

who discovered addition and subtraction.


How is addition relaked to subtraction?

Addition is the inverse operation to subtraction.


How addition and subtraction related?

Addition and subtraction are reverse operations.


Definition of addition and subtraction of binary?

definiton of addition and subtraction


How does an expression of addition change to subtraction?

Adding +k is the same as subtracting (-k).


How are addition and subtraction of integers related?

Addition and subtraction are inverse functions.


How are addition and subtraction mathematically connected?

Subtraction is the addition of a negative number.


What are the similarities of addition and subtraction?

Subtraction can be seen as the inverse operation to addition.


How do you check addition with division?

You don't. You can check addition with subtraction or subtraction with addition, since subtraction is the opposite of addition. Similary, you can check division with multiplication, or vice versa.