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Big Ideas Math Algebra 1 A Bridge to Success

BI

Big Ideas Math Algebra 1 A Bridge to Success View details

Maintaining Mathematical Proficiency

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Exercise 1 Page 1

Instead of adding a negative number, you can subtract.

-7

Let's perform the addition.

-5+(-2)

a+(- b)=a-b

-5-2

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 -5 and moving 2 units to the left on the number line.

The resulting position, after moving to the left on the number line, is the sum. -5+(-2)=-7

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