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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 4 Page 33

Instead of adding a negative number, you can subtract.

- 7

Practice makes perfect

Let's perform the addition.

-4 +(-3)

a+(- b)=a-b

-4-3

Subtract term

- 7

We can see that adding a negative number is the same as subtracting its positive counterpart. Below we will demonstrate by finding - 4 and moving 3 units to the left on the number line.

The resulting position after moving to the left on the number line is the sum. -4+(-3)=- 7

Subchapter links

Lesson Check p.33

Practice and Problem-Solving Exercises p.34-36

Standardized Test Prep p.36

Mixed Review p.36