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Prime A natural number greater than 1 that has exactly two factors ( or division ), itself and 1.

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Prime A natural number greater than 1 that has exactly two factors ( or division ), itself and 1. Composite A natural number that is divisible by a number other than itself and 1. Integer Rational number either negative, positive or zero. Variable

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Presentation Transcript
slide1

Prime

A natural number greater than 1 that has

exactly two factors (or division), itself and 1.

Composite

A natural number that is divisible by a number

other than itself and 1.

Integer

Rational number either negative, positive or zero.

Variable

An alphabetic character representing a number which is either arbitrary or not fully specified or unknown.

GCD

Greatest Common Divisor

LCM

Least Common Multiple

slide2

Decimals to Fractions

0 . 1 2 3 4 5 6

0.1 1/10 10%

0.7 7/10 70%

0.01 1/100 1%

0.70 70/100 70%

0.002 2/1000 2.0%

0.078 78/100 7.8%

Tens

Hundreds

Thousands

Ten-thousands

Hundred-thousands

Millions

slide3

Terminating or Repeating Decimals

3/5 3 divided by 5 is 0.6 Terminating

2/3 2 divided by 3 is 0.6666… Repeating

14/99 14 divided by 99 is 0.14141414… Repeating

5/36 1 and five thirty sixths is 0.138888… Repeating

Repeating Decimal to Fraction

0.33333…

(10)n=0.3(10)

10n = 3.3

-1n = 0.3

9n = 3.0

9n = 3.0

  • 9

n = 3/9

n = 1/3

arithmetic or geometric
ArithmeticorGeometric

Arithmetic – a sequence in which each term after the first term differs from the preceding term by a constant amount.

Example: 1, 5, 9, 13, 17… d = 5 – 1 = 4

Common Difference – a sequence in which each pair of successive terms differs.

Example: 1, 5, 9, 13, 17… d = 5 – 1 = 4

Geometric– a sequence in which the ratio of any term to the term that directly precedes it is a constant.

Example: 2, 4, 8, 16, 32… r = 4/2 = 2; r = 8/4 = 2; r = 16/8 = 2; r = 32/16 = 2…

sequence formulas
Sequence Formulas

1. General for the nth term

an = a1 ( n - 1 ) d

2. Sum of first n terms

Sn = __n ( a1 + an )__

2

3. General or nth term

an = a1 r n-1

4. Sum of the First n terms

Sn = __a1 ( 1 - r n)__

1 – r , r ≠ 1

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