This clips explains that every digit makes sense in two different ways at the same time. It makes sense according to which digit it is, which is known as face value, and it makes sense according to where we decide to put it, which is known as place ...
This clip talks about whole numbers and the system that was developed so that they could be written and spoken. It's known as the system of decimal numerals, based on symbols called digits.
This clip explains the use of commas to organize the digits within a number into groups or periods.
This clip explains that when we write a numeral using words such as "hundreds," "tens" and so on, or numbers like, say, "700," "80," and "9," we are using expanded notation, which makes it much easier to add, subtract, multiply and divide whole numb...
This clip explains that the point associated with a number is called its graph, while the number itself is called the coordinate.
An introduction to the world of business math, rationale for studying the subject and an important look at the value of strong math skills.
This clip explains the concept of the number line, a kind of road map on which every whole number has a corresponding point. The points are in order, just like the numbers, and the distances between them are equal.
This clip demonstrates how "less than" and "greater than" look on the number line. We learn that with any two whole numbers that are not equal, the greater number will always appear on the right, and the smaller number always appears on the left.
This clip explains that to find the number represented by a particular digit in a decimal numeral, we multiply its face value and place value, then combine the values that result by adding them.