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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 25 Page 34

Instead of adding a negative number, you can subtract.

4.4

Practice makes perfect

Let's perform the addition.

5.1+(- 0.7)

a+(- b)=a-b

5.1-0.7

Subtract term

4.4

We can see that adding a negative number is the same as subtracting its positive counterpart. Below we will demonstrate by finding 5.1 and moving 0.7 units to the left on the number line.

The resulting position after moving to the left on the number line is the sum. 5.1+(-0.7)=4.4

Subchapter links

Lesson Check p.33

Practice and Problem-Solving Exercises p.34-36

Standardized Test Prep p.36

Mixed Review p.36