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Addition and Subtraction of Positive and Negative numbers is very simple once you grasp the knowledge of how to do it.
Simply remember when a + and a - are together you - the values and when the signs are the same you + the values.
-+ = -
+- = -
++ = +
-- = +
Examples:
[1] 10 + -9 = 10 (+-) 9 = 10 - 9 = 1
[2] 10 - +9 = 10 (-+) 9 = 10 - 9 = 1
[3] 10 + +9 = 10 (++) 9 = 10 + 9 = 19
[4] 10 - - 9 = 10 (--) 9 = 10 - 9 = 1
Note : The above is much too complex for younger student minds.
FIRST Rule : Gather together all the numbers with the same signs. Then add all the positive numbers together. Do the same for the negatives.
Finally, subtract the negative total from the positive total, to get the final combined total or answer.
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How do you substract negative numbers?
Subtracting negative numbers is exactly the same as adding the positive number.
What is equivalent to adding a negative number?
Subtracting its additive inverse. (In principle, this is valid for adding positive numbers as well.)
How is adding to negative integers the same as and different from subtracting two positive integers?
No- adding negative numbers is like adding positive numbesr , except the answer is negative.
What are the rules for adding and subtracting integers?
when you add two positive integers the answer is always positive when you add two negative integers the answer is positive when you add one negative and on positive integer, the answer is negative subtracting two negative numbers gets a negative answer subtracting two positive numbers- the answer depends subtracting a negative and positive number- the answer depends, the positive number would have to be bigger than the negative to achieve a negative number, and if the positive number is less, than the answer is still negative
What is adding and subtracting integers?
Integers are whole numbers, both positive and negative. Therefore, adding and subtracting integers would be adding and subtracting whole numbers. Examples: 8+2 -8+2 8-2 -8-2
