Is positive plus positive is negative?

ADDITION/ SUBTRACTION:
):( Positive number plus a positive number, add the two numbers, and it equals a positive number.


Does positive plus positive equal negative?

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 a positive plus a negative?

If one is positive and the other negative, the answer will be negative. e.g. (positive ) e.g. When more integers are involved work the calculations from left to right. e.g. to work this out: is equal to then multiply by gives.


Is positive plus or minus?

The plus and minus signs, + and −, are mathematical symbols used to represent the notions of positive and negative, respectively. In addition, + represents the operation of addition, which results in a sum, while − represents subtraction, resulting in a difference.

Is positive minus positive 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.


Why a negative times a negative is a positive | Pre-Algebra | Khan Academy



What is 2 negatives plus a positive?

When you have two negative signs, one turns over, and they add together to make a positive. If you have a positive and a negative, there is one dash left over, and the answer is negative.

Is positive plus positive positive?

):( Positive number plus a positive number, add the two numbers, and it equals a positive number. ):( Positive number minus a negative number switches the double negative to a positive; add the two numbers and it equals a positive number.

What is the +- in math?

(mathematics) the symbol ±, meaning "plus or minus", used to indicate the precision of an approximation (as in "The result is 10 ± 0.3", meaning the result is anywhere in the inclusive range from 9.7 to 10.3), or as a convenient shorthand for a quantity with two possible values of opposing sign and identical magnitude ...


Does +- mean plus or minus?

plus/minus sign. noun. : the sign ± used to mean that a quantity (as 2 in "the square root of 4 is ± 2") takes on both a positive and a negative value or to indicate a plus or minus quantity (as 5 in "the scale was accurate to ± 5 grams") called also plus/minus symbol.

Do you add 2 positives?

Rule 1: Adding positive numbers to positive numbers—it's just normal addition. For example: this is what you have learned all along. 3 + 2 are two positive numbers. You can calculate these problems the way you always have: 3 + 2 = 5.

Why is minus minus a plus?

(-a)(b) = (a)(b), leaving out the times sign. i.e minus times plus is minus.


What is a negative plus a minus?

Adding any number to its opposite —also called the additive inverse—always gives zero as the result. For example: −999+999=02.5+(−2.5)=01+(−1)=0.

What are the rules for negative numbers?

What are the Rules for Negative Numbers?
  • The sum of two negative numbers is a negative number. ...
  • The sum of a positive number and a negative number is the difference between the two numbers. ...
  • The product of a negative number and a positive number is always a negative number.


What does +- mean in physics?

In experimental sciences, the sign commonly indicates the confidence interval or uncertainty bounding a range of possible errors in a measurement, often the standard deviation or standard error. The sign may also represent an inclusive range of values that a reading might have.


How do you make a +- symbol?

Type the following key combination : ⌥ Alt + ⇧ Shift + = : ±

The technique: Keep the Alt ⌥ and ⇧ Shift keys pressed, then type on the key = , which will bring up the "plus or minus" sign : ± at the desired location.

What is the symbol for negative?

Noun. (arithmetic) The symbol −, used to denote the operation of subtraction or to indicate that a number is negative.

What does a ∩ B mean in math?

The intersection operation is denoted by the symbol ∩. The set A ∩ B—read “A intersection B” or “the intersection of A and B”—is defined as the set composed of all elements that belong to both A and B.


Is there Z in math?

Integers (Z). This is the set of all whole numbers plus all the negatives (or opposites) of the natural numbers, i.e., {… , ⁻2, ⁻1, 0, 1, 2, …} Rational numbers (Q).

What do 3 dots in math mean?

In logical argument and mathematical proof, the therefore sign, ∴, is generally used before a logical consequence, such as the conclusion of a syllogism. The symbol consists of three dots placed in an upright triangle and is read therefore.

Is the sum of 2 negatives a positive?

Explanation: The sum of two negative numbers is always negative, hence, this is the right choice. As for the other choices: The product or quotient of two negative numbers is always positive.


Does adding 3 negatives make a positive?

An even number of negative numbers will give a positive answer. An odd number of negative numbers will give a negative answer.

Why positive minus negative is positive?

Because when you do a subtraction problem with a positive taken away, you go down. 8 - 2 = 6 When that's negative, you have the opposite, so you go up.

What are the four rules of maths?

The four basic Mathematical rules are addition, subtraction, multiplication, and division.