Even numbers are numbers that can be divided evenly by 2. Even numbers can be shown as a set like this:{ … -4, -2, 0, 2, 4, … } Odd numbers are numbers that cannot be divided evenly by 2. Odd…
Learn the difference between rational and irrational numbers, and watch a video about ratios and rates
Rational Numbers
A rational number is a number that can be written as a ratio. That means it…
The number known as pi (π) has fascinated people for millenia. The digits to the right of its decimal point can keep going forever, and there is absolutely no pattern to these digits. A team of…
Integers include positive whole numbers, negative whole numbers, and zero.
The “set of all integers” is often shown like this:
Integers = {… -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, …}
The dots at…
See below for helpful information about finding the area of squares, rectangles, parallelograms, circles, ellipses, trapezoids, and triangles.Square A = a2, in which a is one of the sides.Rectangle…
To changeA fraction to a decimal: Divide the denominator (the bottom part) into the numerator (the top part): 1/4 = 1 ÷ 4.00 = 0.25A fraction to a percent: Multiply the fraction by 100 and reduce…
Here are the terms used in equations for addition, subtraction, multiplication, and division. These terms include augend, addend, sum, subtrahend, minuend, difference, multiplicand, multiplier,…
The easiest way to find a square root is to use a calculator, but you can do it without one. Here’s one way, using 12 as an example of the squared number:Pick a number that when squared, comes…
The information below explains PEMDAS: parentheses, exponents, multiplication, division, addition, and subtraction
When you have a math problem that involves more than one operation—for example,…
A whole number that can be divided cleanly into another whole number is called a factor of that number.Example: Factors of 1010 can be evenly divided by 1, as 10 ÷ 1 = 1010 can be evenly divided…
