## Numbers

A number is a mathematical object used to measure, count, & label. In common usage, number may refer to mathematical object, a word or phrase, or a symbol. The notion of number has been extended over the centuries to include 0, negative numbers, rational numbers such as 2/5 and −1/3, real numbers such as √2

## Cube Numbers and Cube Roots

How to Cube A Number a cubed = a x a x a a cubed is written as a3 Examples 0 cubed 03 0 × 0 × 0 0 1 cubed 13 1 × 1 × 1 1 -2 cubed (-2)3 (-2) × (-2) × (-2) -8 3 cubed 33 3 × 3 × 3 27 4 cubed

## Convert Decimals to Fractions

How to convert a Decimal to a Fraction? Write down the decimal divided by 1, like this: decimal/1 Multiply both top and bottom by 10 for every number after the decimal point. Simplify the fraction Examples Decimal Step 1 Step 2 Step 3 Fraction 0.75 2.35 = 2+0.35 0.333 Can’t get any simpler! Special Note: For

## Convert Percents to Fractions

How to convert a Percent to a Fraction? Write down the percent divided by 100 like this:  percent/100 If the percent is not a whole number, then multiply both top and bottom by 10 for every number after the decimal point. Simplify the fraction Examples Percent Step 1 Step 2 Step 3 Fraction 13% The

## Even & Odd function

Every function has each graph, but not all of the graph symmetric to x-axis, y-axis, or others. If the graph has symmetric, it concludes to specific case that the function is even or odd function. Even function and graph Even function is different mean with even numbers. The graph of even function is symmetric to

## Reciprocal of a Fraction

Fractions A Fraction (such as 2/3) has two numbers: Numerator: the top number Denominator: the bottom number We call the top number the Numerator, it is the number of parts we have. We call the bottom number the Denominator, it is the number of parts the whole is divided into. Reciprocal of a Fraction To

## Least Common Multiple

Common Multiple A common Multiple number is a multiple of two or more numbers. Example Multiple of 3 and 4: Number Multiples 3 3, 6, 9, 12, 15, 18, 21, 24, … 4 4, 8, 12, 16, 20, 24, … So, the common multiples of 3 and 4 are: 12, 24, … Least Common Multiple

## Pythagoras Theorem

When a triangle has a right angle (90°) and squares are made on each of the 3 sides, then the biggest square has the exact same area as the other 2 squares put together! Pythagoras Theorem can be written in one short equation: a2 + b2 = c2 Where: c is the longest side of the triangle

## How to Find Intercepts From an Equation

x Intercept is where the graph of an equation crosses the x-axis y Intercept is where the graph of an equation crosses the y-axis How To find the intercepts What Intercept Steps x intercepts (x, 0) 1. Set y=02. Solve for x y intercepts (0, y) 1. Set x=02. Solve for y Learn More General

## Greatest Common Factor

Greatest Common Factor (GCF) or Highest Common Factor (HCF) is the largest of the common factors. Greatest Common Factor is useful to simplify a fraction, because it is the largest number we can divide both numerator and denominator of a fraction. How to Find the Greatest Common Factor Method 1 find all factors of both