Here’s a common mistake, and a very understandable one, too. Students need to combine two negative numbers, and they, of course, wind up with an answer that’s positive. Why? Because, they’ll say — pointing out that you yourself have told them this — “Two negatives make a positive!”

This video gets to the root of this common misunderstanding by helping students understand exactly when two negatives make a positive, and when they don’t.

Make sure you watch the whole video, as there are practice problems at the end, along with their answers.

Includes new 62-page chapter on Advanced Word Problems

PreAlgebra Blastoff!

Comic-style math book teaches how integers work.

Visit SingingTurtle.com to see ALL our products…more on the way!

At Singing Turtle Press, we believe everyone should succeed at math, no matter how math phobic, no matter how right-brained, no matter what. Our products help students K-12 and beyond, including English language learners, and adults returning to college.
Visit Josh's new blog at http://www.algebrawizard.com/blog/

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