# Khan´s PreAlgebra

## Math help review tutor, examples, problems and solutions, video solution manual

This video series is entitled, "Khan´s Pre Algebra," which provides math help review tutor, examples, problems and solutions, video solution manual. The series presents 39 individual tutorials and span the subject of Pre Algebra. These videos have a total playtime duration of 5 hrs 29 min 27 sec.
 This video series on PreAlgebra is from Khan's Academy and provides a brief video lecture review of essential aspects of basic math one should fully understand before advancing to Algebra I (also known as College Algebra). You can skip the parts you find to be too easy if you want. However, I would suggest at least listening to all of it while you do other homework. That way the occasional important bit may grab your attention. And you can easily glide past the parts too basic, without missing anything. All together this runs about 5 hr 29 min 27 sec long. Even better, I suggest working all the problems mentioned before the speaker solves them. If all the problems are easy, then it should be quick. If you can do so correctly, you will know, with certainty, you are ready to advance. And at any rate (no pun intended), the more problems you actually work, the better you get, the faster you get, and the smarter you will be. Remember my advice.

## Pre Algebra: Khan´s PreAlgebra

T Tutorial titles for Khan´s Pre Algebra Time Note 1 Introduction to Negative Numbers 9:35 2 Adding & Subtracting Negative Numbers 9:15 3 Multiplying & Dividing Negative Numbers 8:29 4 Adding & Subtracting Fractions 9:49 5 Multiplying Fractions 8:26 6 Dividing Fractions 8:58 7 Introduction to Order of Operations 9:39 8 Complicated Example of Order of Operations 5:19 9 Exponents I 9:46 10 Exponents II 6:25 11 Exponents III 9:12 12 Negative Exponents 4:37 13 Exponent Rules I 9:42 14 Exponent Rules II 7:43 15 Simplifying Radicals 9:44 very helpful 16 Introduction to Logarithms 9:48 helpful 17 Unit Conversion 9:16 helpful 18 Speed Translation 9:56 19 Introduction to Logarithm Properties I 9:15 20 Introduction to Logarithm Properties II 10:04 21 Scientific Notation 20:47 22 Examples of Scientific Notation 12:48 23 Introduction to Ratios 14:12 helpful 24 Example of Unit Conversion 10:43 25 Examples of Common Divisibility 7:54 helpful 26 Binary Numbers 10:33 27 Binary, Decimal & Hexadecimal Number Systems 11:32 28 Number Base Conversion Practice 7:52 very helpful 29 Significant Figures 5:02 helpful 30 Significant Figures (continued) 5:40 31 Multiplication & Division with Significant Figures 9:30 32 Adding & Subtracting with Significant Figures 8:58 33 Pure Numbers & Significant Digits 2:59 34 Order of Negative Numbers 2:46 35 Comparing Absolute Values 4:06 36 Ordering Fractions 7:48 37 Multiplicative Inverse Property 3:16 38 Additive Inverse Property 2:59 39 Interpreting Linear Graphs 5:04 Total Time of these Tutorials = 5:29:27

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5:29:27 Time (hours : minutes : seconds)
Individual video clips are listed above to help you find specific topics.

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