Addition & Subtraction of Real Numbers

By the end of this section I can...

-Apply properties of operations as strategies to add and subtract rational numbers

-Simplify numeric expressions

Khan Academy Videos and Interactive Practice

Try these first:

https://www.khanacademy.org/math/algebra-basics/core-algebra-foundations/core-algebra-foundations-negative-numbers/v/adding-and-subtracting-negative-number-examples

https://www.khanacademy.org/math/algebra-basics/core-algebra-foundations/core-algebra-foundations-negative-numbers/v/why-subtracting-a-negative-equivalent-to-adding-a-positive

https://www.khanacademy.org/math/algebra-basics/core-algebra-foundations/core-algebra-foundations-negative-numbers/e/adding_and_subtracting_negative_numbers

https://www.khanacademy.org/math/algebra-basics/core-algebra-foundations/core-algebra-foundations-fractions/v/adding-fractions-with-different-signs

https://www.khanacademy.org/math/algebra-basics/core-algebra-foundations/core-algebra-foundations-fractions/e/adding_and_subtracting_fractions

Then these if you need:

https://www.khanacademy.org/math/pre-algebra/decimals-pre-alg/dec-perc-frac-pre-alg/v/adding-and-subtracting-a-decimal-percentage-and-fraction

https://www.khanacademy.org/math/pre-algebra/decimals-pre-alg/dec-perc-frac-pre-alg/v/adding-fractions-decimals-and-percentages

https://www.khanacademy.org/math/pre-algebra/decimals-pre-alg/dec-perc-frac-pre-alg/v/adding-and-subtracting-three-fractions

https://www.khanacademy.org/math/pre-algebra/decimals-pre-alg/dec-perc-frac-pre-alg/e/adding_and_subtracting_rational_numbers

Other Resources:

https://braingenie.ck12.org/units/1468