7th grade Rational #'s, Integers Flashcards

1
Q

What are the 4 types of rational numbers?

A
  1. integers. 2. terminating decimals. 3. repeating decimals. 4. fractions that turn into repeating or terminating decimals
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2
Q

What is an irrational number?

A

a decimal that goes on forever without a pattern

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3
Q

When adding 2 negatives your answer is always…

A

negative

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4
Q

When multiplying or dividing 2 negatives your answer is always…

A

positive

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5
Q

When adding 1 negative and 1 positive you know the sign of the answer by…

A

which number is bigger. if negative number is bigger than answer is negative. if positive number is bigger that answer is positive

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6
Q

How do you change a fraction to a decimal?

A

divide top by bottom

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7
Q

Absolute value is…

A

the distance a number is from zero

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8
Q

Can absolute value be negative, positive or both?

A

positive

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9
Q

Subtracting a negative is the same as…

A

adding

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10
Q

When you are finding the difference between a negative and positive, your answer gets…..

A

When finding the difference between a neg and a pos your answer gets bigger.
You find absolute values of both.

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11
Q

What is the rule for dividing fractions? Multiplying fractions?

A

NOR or NOF for dividing, straight across for multiplying

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12
Q

What do you have to do to mixed numbers before x or ÷?

A

change them to improper fractions

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13
Q

The bigger the negative the….

A

smaller the number

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14
Q

subtracting a number from a negative makes a….

A

bigger negative

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15
Q

multiplying and dividing with only 1 negative your answer is…

A

negative

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