Quick Answer: What Does A Negative And A Negative Make?

What is the rule for adding and subtracting 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.

What does a negative plus a positive equal?

Summary: Adding two positive integers always yields a positive sum; adding two negative integers always yields a negative sum. To find the sum of a positive and a negative integer, take the absolute value of each integer and then subtract these values. … The sum of any integer and its opposite is equal to zero.

When you divide by a negative does the sign change?

The Exception: Negative Numbers There is one very important exception to the rule that multiplying or dividing an inequality is the same as multiplying or dividing an equation. Whenever you multiply or divide an inequality by a negative number, you must flip the inequality sign.

What does a negative and a positive make?

Multiplication and Division 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.

What happens when u divide a negative by a negative?

When you divide a negative number by a positive number then the quotient is negative. When you divide a positive number by a negative number then the quotient is also negative. When you divide two negative numbers then the quotient is positive.

Why negative plus negative equals positive?

When you multiply a negative by a negative you get a positive, because the two negative signs are cancelled out.

Why when you subtract a negative is positive?

Find out why subtracting a negative number is the same as adding the absolute value of that number.

Why can’t you subtract a negative number?

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.

What is a negative plus a negative?

When you are adding a negative number to a negative number, it becomes subtraction, where you start from a negative point on the numbers line and move left. For example, -3 + (-2). This reads “negative three plus negative 2”. … Then we subtract 2. The answer is -5.

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.

Can negative numbers divisible?

The defintion of integers cannot exclude negatives! Moreover if any number is divided by 2 it is even. So negative even integers exist. X and Y both are prime.