Signed Numbers, Addition and Subtraction

Take the fear out of signed numbers. An educational video explains signed numbers as keeping the sign when both are the same, and offers tricks for what to do when one is positive and the other is negative.

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CCSS: Adaptable
Instructional Ideas

  • Create additional practice problems for pupils to solve independently
  • Provide a number line for those that need a physical reference
Classroom Considerations

  • Requires prior knowledge of addition, subtraction, positive numbers, and negative numbers
Pros

  • Uses various colors to show process of solving each problem
  • Offers multiple ways to solve each problem and provides each explanation both verbally and written
Cons

  • None