Dividing Whole Numbers, Part 1: Summary: Dividing Whole Numbers, Part One
This clip summarizes the key points in Part 1 of Dividing Whole Numbers, including the introduction of the terms dividend, divisor and quotient. It then explains that division was introduced in two different ways: as a shortcut for repeated subtract...
Dividing Whole Numbers, Part 1: Rules of Division
This clip explains 4 rules of division, including never dividing by zero; zero divided by a non-zero number equals zero; any number divided by one equals that number; and, any non-zero number divided by itself equals 1.
Dividing Whole Numbers, Part 1: Remainders
This clip explains when remainders are used, noting that they are unnecessary once fractions are learned.
Dividing Fractions: Reciprocals
This clip explains that the reciprocal is the fraction that results when the original fraction is inverted.
Prime Numbers: Introducing Factoring
This clip introduces factoring, explaining in the process that every number equals itself times one, and that the order of the numbers doesn't matter in factoring.
Dividing Signed Numbers: Dividing Positive by Negative and Negative by Positive
This clip explains that, when dividing signed numbers, if the divisor and dividend have different signs, the quotient is negative.