## Pre Algebra Math Tutoring

There are common questions that students have in pre algebra. We are answering a couple questions here:

We are willing to answer other questions for you. Click on the "Contact" tab above and we will post the answers.

Steph asks, "In using the distributive property to simplify algebraic expressions do I distribute or add first. For example, do I subtract 8 - 9 first in 8 - 9 (7 - 5 x )?"

Steph, always remember **PEMDAS **(Please Excuse My Dear Aunt Sally) for the "order of operations" with algebraic operations. We do multiplication and division before addition and subtraction. Therefore, use the distributive property with multiplication **BEFORE** subtracting 8 - 9. To make things easier for you, consider multiplying by - 9. Your simplification will look like this:

8 - 9 (7 - 5 x )

= 8 - 9 (7) + (- 9 ) ( - 5)

= 8 - 63 + 45

Now add (subtract) left to right and you have:

= - 55 + 45

= - 10

Abby asks, "Are there good **pre algebra videos**?"

Abby, there are great algebra videos at Khan Academy. Click on http://www.khanacademy.org/. Then scroll down the page to the following topics:

Algebra: Videos from beginning Algebra through Algebra II (Data Math).

Algebra I Worked Examples: Sample problems worked from Algebra I.

Developmental Math 2: Oodles of worked examples from Algebra through Algebra II

ck12.org Algebra I Examples: Great review topics to make sure you understand Algebra I topics.

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