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Exercises Numbers, fractions and percents

Example 1.37 from Elementary Algebra, 1.3 Add and Subtract Integers

Add and Subtract Integers: example 1.37

Add: ⓐ $1 + 4$ ⓑ $−1 + (−4) .$

Work it out on paper first. Then open the solution one step at a time, and stop as soon as you can finish on your own.

Solution
ⓐ

1 positive plus 4 positives is 5 positives.

ⓑ

1 negative plus 4 negatives is 5 negatives.

Your turn

The book's Try It right after this example: same idea, new numbers. Only the answer is given.

Add: ⓐ $2 + 4$ ⓑ $−2 + (−4) .$

How did it go?

PreviousAdd and Subtract Integers: example 1.34 Next Add and Subtract Integers: example 1.38

From Elementary Algebra (1st edition) by OpenStax (Rice University), section 1.3, licensed under CC BY 4.0. Original at openstax.org. We split the solution into steps; the words, numbers and figures are the book's. OpenStax doesn't endorse this site.