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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 19 Page 34

Let's perform the addition.

17+(-28)

a+(- b)=a-b

17-28

Subtract term

- 11

We can see that adding a negative number is the same as subtracting its positive counterpart.

Below we will demonstrate by finding 17 and moving 28 units to the left on the number line.

The resulting position after moving to the left on the number line is the sum. 20+(-7)=13

Subchapter links

Lesson Check p.33

Practice and Problem-Solving Exercises p.34-36

Standardized Test Prep p.36

Mixed Review p.36