Best Answer

You add the opposite..

Example: 3 - 4 = -1

It changes to 3 + -4 = -1

Example: 5 + 2 =7

It changes to 5 - -2 = 7

(two negatives make a positive)

Q: How do you do Subtraction by Addition?

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Addition is the inverse operation to subtraction.

Addition and subtraction are reverse operations.

Subtraction is the addition of a negative number.

Subtraction can be seen as the inverse operation to addition.

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.

Related questions

who discovered addition and subtraction.

definiton of addition and subtraction

Addition is the inverse operation to subtraction.

Addition and subtraction are reverse operations.

Addition and subtraction are inverse functions.

Subtraction is the addition of a negative number.

Subtraction can be seen as the inverse operation to addition.

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.

Addition is a sum and so is subtraction. So there's your answer!

d-a-s division-addition-subtraction

addition Sum is the result of an addition problem. Difference is the result of a subtraction problem.

Addition is the inverse of Subtraction. Division is the inverse of Multiplication. and then visa-versa. :-) Addition is the inverse of Subtraction. Division is the inverse of Multiplication. and then visa-versa. :-) the Answer is subtraction