Königsberg is undoubtedly one of the most famous cities in mathematics, in part due to its interesting geography. The city of Königsberg (now Kaliningrad, in Russia) was built on two sides of a river, near… Read More »The Seven Bridges of Königsberg
In order to understand algebra, it is important to learn how to simplify expressions! By simplifying expressions, we are able to change a complex expression into a more compact and simple form. Before we start,… Read More »How Do You Simplify Expressions?
What is division? Division is splitting something, such as numbers or objects, into equal groups or parts. Think of it as “fair sharing.” Let’s look at an example to give you a better understanding of… Read More »What Is Division?
The greatest common factor, or GCF, is the greatest number that is a factor of two or more numbers.It’s also known sometimes as Highest Common Factor or HCF. Quick Review on Prime Numbers and Factoring… Read More »Greatest Common Factors (GCF)
What are “factors”? “Factors” are the numbers you multiply together to get another number. Example 1: let’s take the number 6.What are its factors? 6 = 1 x 6 6 = 2 x 3. So,… Read More »Prime factoring
When you get a big set of data (a class of 45 students, an event with 60 invitees, a building with a 300 residents, a theater that seats 100 patrons), there are all sorts of… Read More »Probability and Statistics – Mean
The Real Number system In math, numbers are classified into types in the Real Number system. Number systems can be subsets of other number systems. So, a number can have more than 1 type. Clear as mud?… Read More »Real Number Types – Natural, Whole, Integer, Rational and Irrational Numbers
Review Whole numbers are integers, with no fraction or decimal and no negatives. eg. 3, 9, 62. A digit is any number 0-9. The largest digit that can be used in any place is 9… Read More »Whole numbers: Place values, standard and expanded forms
What is Interest? Interest is the cost of using someone else’s money! So if you borrow money from a bank or a person, you have to pay it back to them “with interest”. lend money… Read More »What is Simple Interest?
Divisibility by 2 This is the easiest of divisibility rules and the very first one to use when checking divisibility of a number or if a number is prime. A number is divisible by 2… Read More »Divisibility rules – easy shortcuts to SAVE TIME on Math homework and tests!
