math 7th Unit 2 Flashcards by Paul Donahue

Q

What does a positive and a positive make?

A

A positive

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Q

What does a negative and a negative make?

A

A positive

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Q

What does a negative and a positive make?

A

A negative

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Q

When do the rules work?

A

On even amounts of numbers

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Q

-5x(-6)=

A

30

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Q

-25x0=

A

Undefined

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Q

20x(-5)=

A

-100

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Q

18/(-3)=

A

-6

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Q

21/(-3)=

A

-7

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Q

1/3 converted to a fraction is?

A

0.3

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Q

Is PI terminating or repeating?

A

Repeating

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Q

What is a rational number?

A

A number that can be written as a fraction

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Q

-3x(-3)

A

9

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Q

What does reciprocal mean?

A

It cancels out and equals one

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Q

If it has the same sign it’s…

A

Positive

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Q

If it has different signs it’s…

A

Negative

Q

0/(4/5)=

A

Undefined

Q

For dividing rational numbers you should use the same sign as you used for…

A

Dividing integers

Q

9.87 converted to a fraction is

A

9 87/100

Q

0.3 as a fraction is

A

3/10

Q

What is a complex fraction?

A

A fraction that has another fraction or number

Q

(1/3) to the power of 2 is

A

1/9