Why Does Subtracting A Negative Make A Positive?

What are the rules for negative and positive 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 happens when you add a negative and 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. … This reads “negative three plus negative 2”. You need to ignore the plus sign and recognize that the second negative means you are subtracting that number.

Why do 2 negatives equal a positive?

When you multiply a negative by a negative you get a positive, because the two negative signs are cancelled out. Why don’t the positive signs cancel out?

What is the rule for adding and subtracting negative numbers?

When adding positive numbers, count to the right. When adding negative numbers, count to the left. When subtracting positive numbers, count to the left. When subtracting negative numbers, count to the right.

What does a positive plus a negative equal?

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 is the quotient of two negative numbers?

When you divide two negative numbers then the quotient is positive.

Do 3 negatives equal a positive?

Rule 3: A negative number times a negative number, equals a positive number. Two negatives make a positive, so a negative number times a negative number makes a positive number. … -2 x -4 are both negative, so we know the answer is going to be positive.

Can two positives make a negative?

Being Rh-positive or Rh-negative means that either you have the Rhesus D antigen on your RBCs (positive) or you don’t (negative). … So, is it possible for two people who are Rh-positive to produce a child that’s Rh-negative? The answer is yes — but only if neither parent passes along Rhesus D.

How do you subtract positive and negative integers?

To subtract integers, change the sign on the integer that is to be subtracted. If both signs are positive, the answer will be positive. If both signs are negative, the answer will be negative. If the signs are different subtract the smaller absolute value from the larger absolute value.

How do you divide a negative by a positive?

The rule for multiplying and dividing is very similar to the rule for adding and subtracting. When the signs are different the answer is negative. When the signs are the same the answer is positive.

Does subtracting a negative make it positive?

That is, subtracting a negative is the same as adding a positive. … For whatever reason, it seems helpful to use the terms “plus” and “minus” instead, of “add, “subtract”, “positive”, and “negative”. So, for instance, instead of saying “subtracting a negative”, you’d say “minus-ing a minus”.

Why is minus minus a plus?

Originally Answered: Why does a minus to minus become a plus? When you negate a number, you are finding the value that, when added to the original number, yields 0. That value is called the additive inverse for that reason. When the original number is positive, its additive inverse is negative.