Model Integer Subtraction

Subtract Integers

Formative Assessment

Summary of the Math: Subtract Integers

Read and Discuss

The value of ab is:

  • Positive if a > b (if a is to the right of b on the number line).

  • Negative if a < b (if a is to the left of b on the number line).

Any subtraction problem can be rewritten as an addition problem by adding the opposite: ab = a + (–b)

Hint:

Check your summary.

  • Explain what it means to subtract integers by taking away?
  • Describe how to subtract integers on a number line?
  • Explain how to subtract any two integers?
  • Explain the guideline for using addition to subtract any two integers?