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Pearson Algebra 1 Common Core, 2011

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Pearson Algebra 1 Common Core, 2011 View details

5. Adding and Subtracting Real Numbers

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Exercise 35 Page 34

Instead of subtracting a negative number, you can add.

- 2

Practice makes perfect

Let's perform the subtraction.

-7-(-5)

a-(- b)=a+b

- 7+5

Add terms

- 2

We can see that subtracting a negative number is the same as adding its positive counterpart. Below we will demonstrate by finding - 7 and moving 5 units to the right on the number line

The resulting position after moving to the right on the number line is the difference. - 7-(-5)=- 2

Subchapter links

Lesson Check p.33

Practice and Problem-Solving Exercises p.34-36

Standardized Test Prep p.36

Mixed Review p.36