Basic Math Concepts

[Matt]

This thread is for basic concepts which we all should know if you're currently taking Pre-Algebra. I'll just be posting some of the very common things you'll see.

Table of Contents

&& Mathematical Signs
&& Number and Integers

[Matt]

&& Mathematical Signs

+
- The plus sign
- Used to add
- Expresses a positive number

-
- The minus sign
- Used to subtract
- Expresses a negative number

* () x .
- Signs used for multiplication

/ ÷
- Signs used for division

=
- The Equal sign
- Used to express equations or equality

<
- Less than sign

>
- Greater than sign

---
- Fraction Bar
- Used to separate the numerator from a denominator

.
- Decimal point
- Used to separate whole numbers from decimals

%
- Percent sign

^
- Can be used to denote exponents

[Matt]

&& Numbers and Integers

Integer
- Either a positive or negative number found on a number line

Positive Integer
- Numbers found on the right of the number line
- Numbers above zero

Negative Integer
- Integer found on the left side of the number line
- Numbers below zero

Number Line
- A straight with zero at its center and numbers on its left and right

Exponents
- A number signifying how many times a base is to be multiplied to itself.
- Used to express equations or equality

Factor
- A factor is a number that is multiplied to another number to get the product

GCF
- Greatest Common Factor
- The greatest common factor is the factor with the largest numerical value between two or more numbers

LCM
- Least Common Multiple
- Smallest number that is a multiple of two or numbers