What is the rule for adding and subtracting positive and negative numbers?
The Rules:
| Rule | Example | |
|---|---|---|
| +(+) | Two identical signs become a positive sign | 3+(+2) = 3 + 2 = 5 |
| −(−) | 6−(−3) = 6 + 3 = 9 | |
| +(−) | Two different signs become a negative sign. | 7+(−2) = 7 − 2 = 5 |
| −(+) | 8−(+2) = 8 − 2 = 6 |
What are the rules for negative and positive?
There are two simple rules to remember: When you multiply a negative number by a positive product, the product is always negative. When you multiply two negative numbers or two positive numbers, the product is always positive.
What is the correct rule for adding and subtracting signed numbers?
8+ (-2). Now if we add a positive number, we get more. So if we add a negative number, we should get a minus sign. It means subtract.
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ADDITION AND SUBTRACTION. SIGNED NUMBERS.
| a + (−b) | = | b |
|---|---|---|
| a − (−b) | = | b |
What is the rule for addition and subtraction?
1) If two numbers have different signs, such as positive and negative, subtract the two numbers and give the sign of the larger number. 2) If two numbers have the same sign, that is, positive or negative, add the two numbers and indicate the common sign.
What are negative rules?
A negative number is a number less than zero and a positive number is a number greater than zero. Zero is neither positive nor negative. You can add, subtract, multiply, and divide positive and negative numbers by combining negatives, positives, or a combination of both.
What is the rule for adding 2 negative numbers?
If it has two negative signs, one is reversed and they add a positive sign. If you have a positive and negative result, there is a script and the answer is negative.
What is the rule for subtracting signed numbers?
Subtract signed numbers
To subtract positive and/or negative numbers, simply change the sign of the subtracted number and then add.