Khan Academy Static

You already know how to multiply and divide whole numbers, decimals, and fractions. See what happens when we throw negative numbers into the mix. It's really not so different!

1750_Multiplying_positive_negative_numbers.html

1752_Why_a_negative_times_a_negative_makes_sense.html

1753_Why_a_negative_times_a_negative_is_a_positive.html

1751_Dividing_positive_and_negative_numbers.html