Math Definitions Flashcards

(14 cards)

1
Q

What is a rational number?

A

A number that can be a fraction that has an integer in the numerator and the denominator (it can also be in decimal form that either terminates or repeats)

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2
Q

What number cannot be in the denominator for it to be a rational number, but it can be in the numerator and why

A

The number zero because it will be undefined 

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3
Q

Steps to solving rational numbers 

A

Write the fraction that will be equal to that number for example 6/1 would equal six because 6÷1 = 6 or 12/2 equals 6 because 12÷2 = 6 

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4
Q

What is the rule when adding in subtracting even and odds?

A

If it’s two of the same , like two evens and two odds, it is automatically even however if they are opposites, it is automatically odd unless the number of odds is even 

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5
Q

What’s the rule when multiplying evens and odds? 

A

If you multiply numbers and there’s at least one even, the answer is always even; only all odds make an odd.

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6
Q

What is a real number?

A

any number you can put on a number line—like positives, negatives, zero, fractions, or decimals—and it can’t be the square root of a negative number 

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7
Q

What is an integer?

A

Any negative or positive number and the number zero (never fractions or decimals)

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8
Q

What is a fraction?

A

A number written in a/B form. Top number is the numerator. Bottom number is the denominator.

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9
Q

What is an improper fraction?

A

A fraction where the numerator is bigger than the denominator

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10
Q

What is a mixed number 

A

An integer and a fraction

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11
Q

What is a prime number?

A

An integer greater than one that has no factors other than one and itself

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12
Q

What is a consecutive number?

A

Numbers that follow one another in order, or in a pattern without any skipping

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13
Q

Factors definition

A

Positive integer that divides evenly into a given number with no remainder

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14
Q

Multiples definition

A

Number that a given number will divide into with no remainder

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