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What are the rules in adding subtracting multiplying and dividing integers?
Adding integers, if they have the same sign, add their absolute values and keep the same sign. Subtracting, change the sign of the 2nd number and the add using rules of addition. Multiplying and dividing, Divide the absolute values, if the signs are the same the answer is positive, if the signs are different the answer is negative.
What are the rules in adding real numbers?
Rules: Unlike SignsSubtract the absolute value of the number and copy the sign of the number with greater absolute value.
What are the rules when adding or subtracting negative numbers?
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
What is a group of terms that are separated by an adding or subtracting signs it does not contain an equal sign?
That's a polynomial expression.
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.
