What is the definition of subtraction when dealing with negatives? The short video provides the definition of subtraction. Scholars observe as the presenter applies the definition to examples with negative numbers.

Concepts

subtraction, subtraction integers, subtraction negative numbers, integers, negative numbers

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Additional Tags

math

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Instructional Ideas

• Provide several opportunities to practice the skill using not only integers, but all rational numbers

Classroom Considerations

• The class must understand how to add rational numbers
• Pupils should understand how to find the negative of a negative number

Pros

• Works an example with a regular subtraction problem
• Applies the definition in both directions

Cons

• None

Common Core

SL.7.2 7.NS.A.1.a 7.NS.A.1.c MP6 MP7