Math Vocabulary

Question 0

What are Integers?

Answer 0

0, ±1, ±2, ±3, ±4, …

Question 1

What are Whole Numbers?

Answer 1

0,1,2,3,4,….

Question 2

What does “±3” mean?

Answer 2

Both +3 and -3

Question 3

What are Positive Integers?

Answer 3

Integers that are greater than 0

Question 4

What are Negative Integers?

Answer 4

Integers that are less than 0

Question 5

What are Even Integers?

Answer 5

0, ±2, ±4, ±6, …

Question 6

What are Odd Integers?

Answer 6

±1, ±3, ±5, ±7, …

Question 7

C > D

What does this mean?

Answer 7

C is greater than D

Question 8

C < D

What does this mean?

Answer 8

C is less than D

Question 9

A ≤ B

What does this mean?

Answer 9

A is less than or equal to B

Question 10

A ≥ B

What does this mean?

Answer 10

A is greater than or equal to B

Question 11

Graph all integers between -4 and 5

Answer 11

-3, -2, -1, 0, 1, 2, 3, 4

Between does not include the endpoints of -4 and 5

Question 12

Graph all the multiples of 5 between 20 and 40 inclusively

Answer 12

20, 25, 30, 35, 40

“Inclusively” means to include the endpoints

Question 13

The sum of two even integers is…

Answer 13

…even

Question 14

The sum of two odd integers is…

Answer 14

…even

Question 15

The sum of an even integer and an odd integer is…

Answer 15

…odd

Question 16

The product of two even integers is…

Answer 16

…even

Question 17

The product of two odd integers is…

Answer 17

…odd

Question 18

The product of an even integer and an odd integer is…

Answer 18

…even

Question 19

If n is even, n² is…

Answer 19

…even

Question 20

If n is odd, then n² is…

Answer 20

…odd

Question 21

If n² is even and n is an integer then n is…

Answer 21

…even

Question 22

If n² is odd and n is an integer, then n is…

Answer 22

…odd

Question 23

What is a Product?

Answer 23

Refers to the answer in multiplication

Question 24

Quotent

Answer 24

Refers to the answer in division

Question 25

Sum

Answer 25

Refers to the answer in addition

Question 26

Difference

Answer 26

Refers to the answer in subtraction

Question 27

Multiple

Answer 27

The product of any two whole numbers

Question 28

Factors Divisors

Answer 28

A number that evenly divides into another number.

Question 29

Prime

Answer 29

A positive integer with exactly two distinct factors: the number and 1

Question 30

First 8 Prime Numbers

Answer 30

2, 3, 5, 7, 11, 13, 17, 19

Question 31

Composite

Answer 31

Numbers with more than 2 factors

Question 32

Write 28 as the product of prime factors

Answer 32

2 x 2 x 7

Question 33

If a number is divisible by 2 if...

Answer 33

...it ends in an even number

Question 34

A number is divisible by 3 if...

Answer 34

...the sum of its digits is divisible by 3

Question 35

A number is divisible by 9 if...

Answer 35

..the sum of its digits is divisible by 9

Question 36

A number is divisible by 4 if...

Answer 36

...its last two digits are divisible by 4

Question 37

A number is divisible by 5 if..

Answer 37

...its last digit is 0 or 5

Question 38

A number is divisible by 6 if...

Answer 38

...it ends in an even number ...the sum of its digits is divisible by 3 or 9

Question 39

A number is divisible by 7 if...

Answer 39

There is no rule for this

Question 40

A number is divisible by 10 if...

Answer 40

...it ends in 0

Question 41

A number is divisible by 11 if...

Answer 41

...the difference between the sum of its even-place digits and the sum of its odd place digits is a multiple of 11. Example: 928,193,926 9 + 8 + 9 + 9 + 6 = 41 2 + 1 + 3 + 2 = 8 41 - 8 = 33

Question 45

What are all the factors of 28?

Answer 45

1, 2, 4, 7, 14, 28

Question 46

When multiplying numbers, if there are an odd number of negative numbers then...

Answer 46

...the answer will be negative

Question 47

When multiplying numbers, if there are an even number of negative numbers then...

Answer 47

...the answer will be positive

Question 48

Mean

Answer 48

The average Add all number then divide by how many numbers you just added

Question 49

Median

Answer 49

The middle number Line up all the numbers in order and pick the middle one

Question 50

Mode

Answer 50

Most common The number that occurred with the highest frequency

Question 51

Bimodal

Answer 51

A number set with two equally occurring numbers

Question 52

Range

Answer 52

The highest number minus the lowest number

Question 53

When adding and subtracting with decimals, always...

Answer 53

...line up the decimal points.

Question 54

When multiplying with decimals...

Answer 54

...count the number of decimal places and add them. This will be the number of decimal places for the product.

Question 55

When dividing by decimals...

Answer 55

...move the decimal point in the divisor and the dividend (the number being divided into) by the same number of points so that the divisor loses its decimals

Question 56

When reading a number with a decimal...

Answer 56

Read the whole number, say the word "and", then the decimal portion as an ordinal number

Question 57

Numerator

Answer 57

The top part of the fraction

Question 58

Denominator

Answer 58

The bottom part of the fraction

Question 59

If the bottom number of two fractions are the same but the top number differs then...

Answer 59

...the fraction with the bigger top number is the largest

Question 60

If both the top and bottom numbers of two fractions differ, then...

Answer 60

... find the lowest common denominator (LCD)

Question 61

Rational Number

Answer 61

Any integer divided by an integers where the solution does not equal zero An repeating of terminating decimal

Question 62

A fraction is less that 1/2 if...

Answer 62

...the bottom number is more than twice the top

Question 63

To double a fraction...

Answer 63

Double the top or halve the bottom

Question 64

Adding the same number to the top and bottom of a fraction...

Answer 64

...brings it closer to 1

Question 65

Adding/Subtracting Fractions

Answer 65

Find the lowest common denominator and add the top numbers

Question 66

Multiplying Fractions

Answer 66

Multiply the numerators with each other and the denominators with each other You can reduce diagonally or vertically as you go to make the numbers smaller ``` 50/15 x 27/8 = = 10/3 x 27/8 = 5/3 x 27/4 = 5/1 x 9/4 = 45/4 = 11 1/4 ```

Question 67

Reciprocal

Answer 67

Inverting a fraction (turning it upside down) 2/3 => 3/2 5 => 1/5

Question 68

Dividing Fractions

Answer 68

Invert the second fraction and multiply