How To: Subtract negative numbers in pre-algebra

Subtract negative numbers in pre-algebra

Lawrence Perez, from Saddleback College, and his assistant Charlie, give this pre-algebra lesson on subtracting negative numbers. Don't get confused with those minus symbols. Learn how to manage them correctly, and with ease.

Get the Gadget Hacks Daily

Life hacks for your smartphone.

1 Comment

This guy thinks he is much funnier then he is...
Nice graphics though.

Share Your Thoughts

  • Hot
  • Latest