What is a positive minus a positive?
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.
How do you subtract positive and positive numbers?
To add and subtract numbers always begin counting from zero. When adding positive numbers, count to the right. When subtracting positive numbers, count to the left.
How do you subtract a positive number from a negative number?
When taking a negative number minus a positive number, drop both minus signs and add the two numbers as if they were both positive; then attach a minus sign to the result.
What is a positive plus a negative?
Let’s understand the negative plus the positive number. Explanation: Addition of a positive number and a negative number: While adding a positive and a negative number, we take the difference of the absolute values of both the numbers and attach the sign of the greater number with the answer. a + (-b) = (a – b)
What happens if you subtract a positive from a negative?
When you add a negative number, you move to the left on the number line. Example 3: Subtracting a number is the same as adding its opposite. So, subtracting a positive number is like adding a negative; you move to the left on the number line.
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.
What is the rule for adding positive and negative numbers?
When you add or subtract positive and negative numbers, the sign of the answer depends on whether the signs are alike or which number has a larger value. Adding positive and negative numbers is simple when both numbers have the same sign. Simply find the sum of the numbers and keep the sign.
What are the rules of negative and positive numbers?
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 |
Why when you subtract a negative is positive?
Subtracting a number is the same as adding its opposite. So, subtracting a positive number is like adding a negative; you move to the left on the number line. Subtracting a negative number is like adding a positive; you move to the right on the number line.
Why is minus minus a plus?
This is in fact the reason why the negative numbers were introduced: so that each positive number would have an additive inverse. The fact that the product of two negatives is a positive is therefore related to the fact that the inverse of the inverse of a positive number is that positive number back again.
What is the rule for adding and subtracting negative numbers?
The rule is: Adding a negative number is the same as subtracting the corresponding positive number.
What is a negative number minus a positive number?
If one subtracts a positive number from a negative number, the process is still subtraction. For example, -3 minus 7 is -10. On the other hand, subtracting a negative number from a positive number is equivalent to addition. Just as subtracting a negative is addition, adding a negative is subtraction.
What happens when you subtract a negative and add a positive?
So, instead of subtracting a negative, you are adding a positive. Basically, – (-4) becomes +4, and then you add the numbers. For example, say we have the problem -2 – –4. This would read “negative two minus negative 4”. So we’re changing the two negative signs into a positive, so the equation now becomes -2 + 4.
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How to turn a negative number into a positive number?
So we’re changing the two negative signs into a positive, so the equation now becomes -2 + 4. On the number line, it starts at -2. Then we move forward 4 units: +4. The answer is -2 – (-4) = 2. Rule 4: Subtracting a negative number from a positive number – turn the subtraction sign followed by a negative sign into a plus sign.