What happens when you add a positive and negative number?
When you are adding a negative number to a positive number you are effectively subtracting the second number from the first. For example, take 4 + (-2). And then you add the negative number, which means you are moving to the left – in the negative direction.
What is a positive minus a positive?
Rule 1: Subtracting a positive number from a positive number – it’s just normal subtraction. For example: this is what you have learned before. 6 – 3 are two positive numbers. So solve this equation the way you always have: 6 – 3 = 3.
What is a positive times a positive?
Rule 1: A positive number times a positive number equals a positive number. This is the multiplication you have been doing all along, positive numbers times positive numbers equal positive numbers. For example, 5 x 3 = 15. 5 is a positive number, 3 is a positive number and multiplying equals a positive number: 15.
What’s the rule for plus and minus?
The Rules:
| Rule | Example | |
|---|---|---|
| +(+) | Two like signs become a positive sign | 3+(+2) = 3 + 2 = 5 |
| −(−) | 6−(−3) = 6 + 3 = 9 | |
| +(−) | Two unlike signs become a negative sign | 7+(−2) = 7 − 2 = 5 |
| −(+) | 8−(+2) = 8 − 2 = 6 |
Will two positives equal a negative?
Multiplying and Dividing with Positive and Negative Numbers. When the signs of the two numbers are the same, the answer will be positive. When the signs of the two numbers are different, the answer will be negative.
What happens when you add a negative number to a positive number?
When you are adding a negative number to a positive number you are effectively subtracting the second number from the first. For example, take 4 + (-2). How does that look on the numbers line?
Can you multiply a signed number to a positive number?
To multiply or divide signed numbers, treat them just like regular numbers but remember this rule: An odd number of negative signs will produce a negative answer. An even number of negative signs will produce a positive answer.
Can a number with no sign be a positive number?
Numbers Can be Positive or Negative This is the Number Line: No Sign Means Positive If a number has no sign it usually means that it is a positive number.
What’s the difference between adding and subtracting positive numbers?
Adding positive numbers is just simple addition. Subtracting positive numbers is just simple subtraction. Now let’s see what adding and subtracting negative numbers looks like: The last two examples showed us that taking away balloons (subtracting a positive) or adding weights (adding a negative) both make the basket go down.