Quick Answer: Why Negative Plus Negative Equals Positive?

Why when you subtract a negative is positive?

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..

What is the rule for adding and subtracting positive and negative numbers?

The Rules:RuleExample+(+)Two like signs become a positive sign3+(+2) = 3 + 2 = 5−(−)6−(−3) = 6 + 3 = 9+(−)Two unlike signs become a negative sign7+(−2) = 7 − 2 = 5−(+)8−(+2) = 8 − 2 = 62 more rows

Does a minus times a minus equal a plus?

You may notice people “canceling off” minus signs. They are taking advantage of the fact that “minus times minus is plus”. For instance, suppose you have (–2)(–3)(–4). Any two negatives, when multiplied together, become one positive.

Is a negative divided by a negative?

Two negatives make a positive, so a negative number divided by a negative number equals a positive number.

What does a negative plus a positive mean?

If two positive numbers are multiplied together or divided, the answer is positive. If two negative numbers are multiplied together or divided, the answer is positive. If a positive and a negative number are multiplied or divided, the answer is negative.

Why does minus minus equal plus?

“How does minus times minus equal a plus?” Simply put, multiplying by negative number (a minus) changes the sign. So if you multiply a POSITIVE number by a negative number, that changes it from positive to negative. … Here, you started with a negative number, but your result is positive.

Why do 2 negatives make a positive?

Each number has an “additive inverse” associated to it (a sort of “opposite” number), which when added to the original number gives zero. … 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 does a negative plus a negative equal?

Rule: The sum of any integer and its opposite is equal to zero. Summary: Adding two positive integers always yields a positive sum; adding two negative integers always yields a negative sum.

What happens when you subtract a negative from a negative?

Rule 3: Subtracting a negative number from a negative number – a minus sign followed by a negative sign, turns the two signs into a plus sign. So, instead of subtracting a negative, you are adding a positive. Basically, – (-4) becomes +4, and then you add the numbers. … This would read “negative two minus negative 4”.