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Prealgebra
Prealgebra

1Identity numbers

2Opposite of a number

3Signed numbers, addition and subtraction

4Signed numbers, multiplication

5Signed numbers, division

6Absolute value

7Divisibility

8Multiples

9Prime and composite numbers

10Prime factorization and product of primes

11Least common multiple

12Place value

13Decimal arithmetic

14Repeating decimals

15Rounding decimals

16Reducing fractions and cancellation

17Equivalent fractions and reducing

18Division of zero

19Adding and subtracting fractions

20Multiplication and division of fractions

21Signs of fractions

22Reciprocals

23Fractions to decimals to percents

24Percent markup

25Mixed numbers and improper fractions

26Addition and subtraction of mixed numbers

27Multiplication and division of mixed numbers

28Relationships of numbers

29Adding mixed measures

30Ratio and proportion

31Unit price

32Unit multipliers

33Ratio and proportion, word problems

34Ratio and proportion for chemical compounds

35Exponents

36Rules of exponents

37Power rule for exponents

38Quotient rule for exponents

39Exponents of negative bases

40Exponents, powers of fractions

41Zero as an exponent

42Radical addition and subtraction

43Multiplying radicals

44How to easily divide scientific notation

45How to estimate HUGE numbers using scientific notation!

46How to write small and big numbers in SCIENTIFIC NOTATION

47All about DIVIDING SQUARE ROOTS!

48How to easily find RANGE MEAN MEDIAN and MODE!

49Exponents  What are they?

50Scientific notation  How to do it?
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