# Pre-algebra

Enrolled: 0 students
Level: Beginner ### Pre-algebra

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Identity numbers
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Opposite of a number
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Signed numbers, multiplication
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Signed numbers, division
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Absolute value
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Divisibility
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Multiples
2:37
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Prime and composite numbers
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Prime factorization and product of primes
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Least common multiple
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Place value
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Decimal arithmetic
4:34
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Repeating decimals
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Rounding decimals
7:10
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Reducing fractions and cancellation
7:04
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Equivalent fractions and reducing
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Division of zero
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8:39
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Multiplication and division of fractions
4:18
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Signs of fractions
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Reciprocals
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Fractions to decimals to percents
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Percent markup
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Mixed numbers and improper fractions
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Addition and subtraction of mixed numbers
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Multiplication and division of mixed numbers
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Relationships of numbers
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Ratio and proportion
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Unit price
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Unit multipliers
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Ratio and proportion, word problems
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Ratio and proportion for chemical compounds
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Exponents
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Rules of exponents
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Power rule for exponents
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Quotient rule for exponents
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Exponents of negative bases
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Exponents, powers of fractions
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Zero as an exponent
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5:28
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How to easily divide scientific notation
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How to estimate HUGE numbers using scientific notation!
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How to write small and big numbers in SCIENTIFIC NOTATION
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How to easily find RANGE MEAN MEDIAN and MODE!
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Exponents - What are they?
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Scientific notation - How to do it?
32:17