Naming Whole Numbers: System of Decimal Numerals, The
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.
Negative Exponents: Basics of Working With Exponents, The
This clip explains the terms "exponent," "base" and "power," as well as the concept of exponents as a shortcut for multiplying a number by itself one or more times.
Negative Exponents: Division Involving Negative Exponents
This clip explains that, when it comes to division involving negative exponents, if the bases are the same, we just subtract exponents. The clip illustrates this rule with a number of examples including 4 to the power of..
Negative Exponents: Expanded Notation and Negative Exponents
This clip explains the use of negative exponents in expanded notation as a way of getting rid of fractions. As an example, the clip states that, " 7 times 1 over 10 becomes 7 times 10 to the power of negative 1. 8 times..
Negative Exponents: Multiplication Involving Negative Exponents
This clip explains negative exponents and how to deal with them. "Think of the whole business as a fraction with a denominator of 1," the clip states. "Then, to change the sign of the exponent, just invert the fraction."..
Negative Exponents: Summary: Negative Exponents
This clip summarizes the lesson on negative exponents. It explains that when we say 4 to the power of negative 2, it means 1 over 4 to the power of 2. "If we think of the original number as a fraction with a denominator ..
Number Line, The: Graphs and Co-ordinates
This clip explains that the point associated with a number is called its graph, while the number itself is called the coordinate.
Number Line, The: Inequalities on the Number Line
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 a..
Number Line, The: Introduction to Inequalities
This clip explains how the number line can be used to better understand the idea of inequality, which is based on the fact that, if two numbers aren't equal, one must be greater than the other.
Number Line, The: Introduction to the Number Line
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.