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Cassidy B.

Positive x Positive

Positive

Positive x Negative

Negative

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Negative x Negative

Positive

A number is even if...

the last digit is divisible by 2

A number is odd if...

the last digit is NOT divisible by 2

Even x Even

Even

Odd x Odd

Odd

Even x Odd

Even

Even + Even

Even

Odd + Odd

Odd

Even + Odd

Odd

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A number is divisible by 3 if...

the sum of the digits is divisible by 3

A number is divisible by 4 if...

the # formed by the last 2 digits is divisible by 4

A number is divisible by 5 if...

the last digit is 0 or 5

A number is divisible by 6 if...

it is divisible by 2 and 3

0 divided by anything is...

ZERO

A prime number is divisible only by...

1 and itself

0.2 =

1/5

0.25 =

1/4

0.3333 =

1/3

0.4 =

2/5

0.5 =

1/2

0.6 =

3/5

0.6666 =

2/3

0.75 =

3/4

0.8 =

4/5

Fraction

part to whole relationship

Ratio

part to part relationship

1/4 = what %

25

1/2 = what %

50

1/3 = what %

33 and 1/3

1/5 = what %

20

To get 10% of a number you should...

move the decimal point one place to the left

To get 1% of a number you should...

move the decimal point two places to the left

Compound interest is always ____ than simple interest?

A little bit more

Any number to the power of 1 is...

the number itself

Any number to the power of 0 is...

one

Is 0 even or odd

even

What happens if you multiply or divide both sides of an inequality by a negative number?

the direction of the inequality symbol changes

When people work together what do you do with their rates?

Add them together...if it is asking about a complete job the work (at top of pie) will be 1

If people are traveling toward each other, what do you do with their rates?

Add them together... the distance (top of the pie) will be the total distance between them

How do you find the probability of a series of events?

Multiply the probabilities of each of the individual events

The probability that A and B will BOTH happen is...

Probability of A times probability of B

The probability that A or B will happen is...

Probability of A PLUS probability of B

Probability that something WON'T happen...

WON'T =

1- WILL

Probability that at least one thing WILL happen...

WILL =

1 - WON'T

Will a combination be smaller or larger than a permutation?

SMALLER

How do the sides of a triangle relate to it's interior angles?

The sides of a triangle are proportionate to it's interior angles

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