You could be adding numbers that have different signs.
Just a guess.
Addition.
Addition and subtraction are inverse operations. So you can solve addition by subtracting.
Addition and subtraction can be thought of as the same thing because subtracting a negative number is the same as adding it and adding a negative number is the same as subtracting it.
Subtracting a negative integer is the same as adding its absolute value.
Addition and subtraction are inverse functions.
Adding +k is the same as subtracting (-k).
They are inverse operationsalso you can think of subtracting as just adding a negative number.
you find out missing numbers in addition by subtracting the numbers that are writen
Because a negative negative is the same a a positive, and because of the definition of subtraction and addition.
Parentheses, exponents, multiplication and division, addition and subtraction.
When subtracting positive and negative integers, the key rule is to convert the subtraction into addition. Specifically, subtracting a negative integer is the same as adding its positive counterpart (e.g., ( a - (-b) ) is the same as ( a + b )). Conversely, subtracting a positive integer means you move to the left on the number line (e.g., ( a - b )). Always remember that subtracting a positive results in a decrease, while subtracting a negative results in an increase.
Addition is shown with a plus sign (+), subtraction is denoted by a minus sign (-).