Rational Numbers

Why a Negative Times a Negative is a Positive

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Use the distributive property to understand the products of negative numbers.

Multiplying Positive and Negative Numbers

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Learn some rules of thumb for multiplying positive and negative numbers.

Multiplying and Dividing Negative Numbers: Multiplying Numbers with Different Signs

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Learn how to find the product of numbers with different signs.

WorkKeys Applied Mathematics | Level 6

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Level 6 of the WorkKeys Applied Mathematics assessment requires learners to solve complicated problems. These videos and worksheets are designed to help learners apply mathematical reasoning, critical thinking, and problem-solving techniques to work-related problems.

These resources are part of KET’s Applied Mathematics: Resources for WorkKeys® and GED® Preparation collection.

I <3 Math: Integers - How do Positive and Negative Numbers Relate to Temperature? (Video-Only Clip)

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Providing the opportunity to apply knowledge about positive and negative integers by narrating the clip. Students can describe how integers are represented on a number line as they relate to temperature. An I <3 Math clip with no audio.

Commutative Property of Addition | PBS Math Club: InstaCram

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Demonstrating the Commutative Property of Addition with a number line in 10 seconds with InstaCram from the Math Club.

Thinkport | Opposite Quantities and Zero Pairs

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Explore numerical opposites by considering the trajectory of a hot air balloon as it rises and falls in this video from MPT. In the accompanying classroom activity, students watch the video and then play a game in which they move a button along a number line in positive and negative directions. They find the total amount that the button travels in each direction in order to end up where it started. To get the most from the lesson, students should have some experience finding the distance between positive and negative integers on a number line. For a longer self-paced student tutorial using this media, see "Opposite Quantities and Zero Pairs" on Thinkport from Maryland Public Television.

Absolute Value: Absolute Value Word Problems

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Here are a few word problems that ask us to apply our new absolute value knowledge.

Absolute Value: Comparing Absolute Values - Concepts of "Greater Than" (>) and "Less Than (<)

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When we compare numbers we use the concepts of greater than (>), less than (

Absolute Value: Integers

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Let's mix a little algebra into our discussion of absolute value. If we are looking for the |x|, if we know what x equals, we can do it.

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