Vocabulary List

DVED Math 021, 022, 023*, and 024*

By the end of the quarter, fill in the definitions of all the terms below.

DVED 021-022 omit words with*

Use words to define each term and when appropriate, also show an application example.

Definition

Example

Approximate - a rounded close approximation of answer (equivalent) @ .
392 + 48 is approximately 450

*Area - measure of the surface inside a geometric figure.
a = L * W triangle a = p r² circle
a = ½ bh triangle

Average - divide the sum of the numbers by the # of numbers.
8, 6, 10, 12 = 36
9 is average 36÷4 = 9

Base - bottom line in a triangle.
base

*Circle – continuous line in which all points are equal distance from each other.

Circumference – distance around a cudle found by multiplying the diametr. pi(3.1416)

p D = C

Common Denominator – same bottom number used in comaring adding or subtracting fractions.
½ and ½ the common denominator is 6

Composite numbers – not primes ,can be divided by other numbers than themserlves.
2, 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22, 24…

Counting numbers

1, 2, 3, 4, 5, 6, 7, 8, 9, 10…

*Cross Multiply (cross multiplication) – used for ratios/proportions

*Cube (noun) – a geometric figure having height, width and depth – 3d
Cube

*Cube (verb) – multiplying a number times itself and multiplying itself again
4³ = 4*4*4
36*4 = 64

*Cubic centimeter – 1 centimeter cubed (equals 1 milliliter)
1 cm each side

Cubic inch - 1 inch cubed

1 inch each side

Decimal – a specialized fraction using 10^th, 100^th,1000^th…
0.86 = 86/100

Decimal places (number of) – numbers of places to the right of the decimal.
.065 has 3 dec. places
1.86 has 2
41 has no dec. places

Denominator – the number of times you divided a number into parts.

8
—
15 denominator

*Diameter – the distance across a circle through the center.
Diameter

Difference – answer in a subtraction problem.
18 – 6 = 12 (difference)

Digits – the actual numbers.
0, 1, 2, 3, 4, 5, 6, 7, 8, 9…

Dividend – the number that is being divided by another
In 14 ÷ 7 = 2, 14 is dividend

Divisible – can be divided evenly.
8 is divisible by 2 four times

Divisor – the number you divide into another number.
In 30 ÷ 6 = 5,
6 is divisor

Equivalent fractions – fractions having the same value (@ sign).

1 /4 @ 4/16

Estimation – getting a close approximation to the answer by rounding off numbers
499 = 51 = 380 @ 950
(is close to)

Exponent – number of times a factor occurs in a number, written.
8³ = 512
exponent

Factor – each of the numbers that is multiplied.
In 4 * 2 = 8,
4 and 2 are factors

Fraction – a part of a whole.

3/8

Geometric Figures (name 4 kinds)
Will vary,

Greater than > sign used to compare two number’s that are not equal
6>4

Improper fraction – fractions where the a numerator is larger than the denominator

6/4 is an improper fraction

Inequality - ¹ not equal
6 ¹ 4

Interest – money that is paid for borrowing money
I = Principle * Rate * Time

LCM Lowest common denominator – in a group of fractions, the smallest same bottom number they will go into evenly

Less than - < sign used to compare two numbers is that aren’t equal.
2 < 4

Like Fractions – fractions with the same denominator

3/5 and 2/5 are like fraction

*Like Measurement – using the same units of measure to measure, add, subtract.
6in. + 4in. = 10in.

Lowest Terms – a fraction reduced to the lowest terms by dividing a fraction form of 1 into it .

fraction form of 1: 2/2,3/3,4/4,5/5…18/18 etc.

Mean – (see average)

Median – set of numbers arranged from smallest to largest , medium point number.

Mixed number –

Multiple –the times table for a number
The multiples of 4 are: 4, 8, 12, 16, 20, 24…

Natural numbers
1, 2, 3, 4, 5, 6, 7…

Numerator – top number of a fraction
In 3/4 , 3 is the numerator

Order of operations – proper order to do several arithmetic operations in.
( )[ ] ,
exponents
x, ¸ from left to right in order they occur
+, - from left to right in order they occur

*Percent – per one hundred
86% is 8/100

*Perimeter- distance around a geometric shape.

Place value – the placement of the digits tell the value of the number
In 186, 842 each digit holds a place value.

Percent increase, Percent decrease – find the difference then divide the amount of increase by the original amount.

Power of ten – whole numbers that begin with 1 and end with 1 or more zeros.
10, 100, 1000, 10000…

Prime factorization – factors that are prime numbers.
15 = 3 * 5,
3 and 5 are primes.

Prime number – whole number grater than 1that can only be divided by itself and 1.

Prime numbers: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37 …

Product – answer in a multiplication problem.
In 5 * 6 = 30,
30 is the product

Proper fraction – fraction where the numerator is smaller that the denominator.

3
— is a proper fraction

4

*Proportion – a statement that 2 ration or 2 rates are equal.

3/4 = 15/20 is a proportion

Quotient – answer in a division problem.
Quotient
Divisor | Dividend

*Radius - a line segment from the center to any point on the circle.
Radius

*Rate – compares 2 quantities that have different units.

18 miles / 4 hours is a rate

*Ratio – compares 2 like quantities.

4 mi /8 mi = ratio

Reciprocal – the opposite function used in dividing fractions.
The reciprocal of 3/4 divide by 1/2 = 3/4 x 2/1

*Rectangle – a geometric shape with 2 parallel sides equal.

Reduce - in fractions when finished with the problem divide by a form of 1.

Remainder – when 2 numbers don’t divide exactly, the amount left over.
7 ÷ 2 = 3 r. 1

Rounding ( to found) – estimating approximate a correct response by rounding

Scientific notation – changing the form of a number by moving the decimal until the number is between 1 and 9.
(remember how many places you move)

*Solve the proportion - cross multiply then divide by the remaining number.

*Square (noun) - geometric figure with 4 equal sides.

*Square ( verb) – to multiply a number by itself.
4² = 16

*Square centimeter – 1cm L* 1cm W

1cm
1 cm

*Square inch – 1 inch L* 1 inch W

1 inch
1 inch

Sum – answer in addition problem.

*Triangle – 3 sided figure woth connected sides.

*Unit rate – the rate that is over 1 unit.

Unlike fractions – fractions where the bottom numbers aren’t alike.

1/3 and 1/8 are unlike fractions

Value -

*Variable – an unknown quantity in an equation represented by a letter
In A + 6 = 8, A is the variable

Volume – measure of space inside a 3 dimensional object.
V = L * W * H

Whole numbers –

Word Names – names for numbers.

Definition	Example
Approximate - a rounded close approximation of answer (equivalent) @ .	392 + 48 is approximately 450
*Area - measure of the surface inside a geometric figure.	a = L * W triangle a = p r² circle a = ½ bh triangle
Average - divide the sum of the numbers by the # of numbers.	8, 6, 10, 12 = 36 9 is average 36÷4 = 9
Base - bottom line in a triangle.	base
*Circle – continuous line in which all points are equal distance from each other.
Circumference – distance around a cudle found by multiplying the diametr. pi(3.1416)	p D = C
Common Denominator – same bottom number used in comaring adding or subtracting fractions.	½ and ½ the common denominator is 6
Composite numbers – not primes ,can be divided by other numbers than themserlves.	2, 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22, 24…
Counting numbers	1, 2, 3, 4, 5, 6, 7, 8, 9, 10…
*Cross Multiply (cross multiplication) – used for ratios/proportions
*Cube (noun) – a geometric figure having height, width and depth – 3d	Cube
*Cube (verb) – multiplying a number times itself and multiplying itself again	4³ = 444 36*4 = 64
*Cubic centimeter – 1 centimeter cubed (equals 1 milliliter)	1 cm each side
Cubic inch - 1 inch cubed	1 inch each side
Decimal – a specialized fraction using 10^th, 100^th,1000^th…	0.86 = 86/100
Decimal places (number of) – numbers of places to the right of the decimal.	.065 has 3 dec. places 1.86 has 2 41 has no dec. places
Denominator – the number of times you divided a number into parts.	8 — 15 denominator
*Diameter – the distance across a circle through the center.	Diameter
Difference – answer in a subtraction problem.	18 – 6 = 12 (difference)
Digits – the actual numbers.	0, 1, 2, 3, 4, 5, 6, 7, 8, 9…
Dividend – the number that is being divided by another	In 14 ÷ 7 = 2, 14 is dividend
Divisible – can be divided evenly.	8 is divisible by 2 four times
Divisor – the number you divide into another number.	In 30 ÷ 6 = 5, 6 is divisor
Equivalent fractions – fractions having the same value (@ sign).	1 /4 @ 4/16
Estimation – getting a close approximation to the answer by rounding off numbers	499 = 51 = 380 @ 950 (is close to)
Exponent – number of times a factor occurs in a number, written.	8³ = 512 exponent
Factor – each of the numbers that is multiplied.	In 4 * 2 = 8, 4 and 2 are factors
Fraction – a part of a whole.	3/8
Geometric Figures (name 4 kinds)	Will vary,
Greater than > sign used to compare two number’s that are not equal	6>4
Improper fraction – fractions where the a numerator is larger than the denominator	6/4 is an improper fraction
Inequality - ¹ not equal	6 ¹ 4
Interest – money that is paid for borrowing money	I = Principle * Rate * Time
LCM Lowest common denominator – in a group of fractions, the smallest same bottom number they will go into evenly
Less than - < sign used to compare two numbers is that aren’t equal.	2 < 4
Like Fractions – fractions with the same denominator	3/5 and 2/5 are like fraction
*Like Measurement – using the same units of measure to measure, add, subtract.	6in. + 4in. = 10in.
Lowest Terms – a fraction reduced to the lowest terms by dividing a fraction form of 1 into it .	fraction form of 1: 2/2,3/3,4/4,5/5…18/18 etc.
Mean – (see average)
Median – set of numbers arranged from smallest to largest , medium point number.
Mixed number –
Multiple –the times table for a number	The multiples of 4 are: 4, 8, 12, 16, 20, 24…
Natural numbers	1, 2, 3, 4, 5, 6, 7…
Numerator – top number of a fraction	In 3/4 , 3 is the numerator
Order of operations – proper order to do several arithmetic operations in.	( )[ ] , exponents x, ¸ from left to right in order they occur +, - from left to right in order they occur
*Percent – per one hundred	86% is 8/100
*Perimeter- distance around a geometric shape.
Place value – the placement of the digits tell the value of the number	In 186, 842 each digit holds a place value.
Percent increase, Percent decrease – find the difference then divide the amount of increase by the original amount.
Power of ten – whole numbers that begin with 1 and end with 1 or more zeros.	10, 100, 1000, 10000…
Prime factorization – factors that are prime numbers.	15 = 3 * 5, 3 and 5 are primes.
Prime number – whole number grater than 1that can only be divided by itself and 1.	Prime numbers: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37 …
Product – answer in a multiplication problem.	In 5 * 6 = 30, 30 is the product
Proper fraction – fraction where the numerator is smaller that the denominator.	3 — is a proper fraction 4
*Proportion – a statement that 2 ration or 2 rates are equal.	3/4 = 15/20 is a proportion
Quotient – answer in a division problem.	Quotient Divisor \| Dividend
*Radius - a line segment from the center to any point on the circle.	Radius
*Rate – compares 2 quantities that have different units.	18 miles / 4 hours is a rate
*Ratio – compares 2 like quantities.	4 mi /8 mi = ratio
Reciprocal – the opposite function used in dividing fractions.	The reciprocal of 3/4 divide by 1/2 = 3/4 x 2/1
*Rectangle – a geometric shape with 2 parallel sides equal.
Reduce - in fractions when finished with the problem divide by a form of 1.
Remainder – when 2 numbers don’t divide exactly, the amount left over.	7 ÷ 2 = 3 r. 1
Rounding ( to found) – estimating approximate a correct response by rounding
Scientific notation – changing the form of a number by moving the decimal until the number is between 1 and 9.	(remember how many places you move)
*Solve the proportion - cross multiply then divide by the remaining number.
*Square (noun) - geometric figure with 4 equal sides.
*Square ( verb) – to multiply a number by itself.	4² = 16
Square centimeter – 1cm L 1cm W	1cm 1 cm
Square inch – 1 inch L 1 inch W	1 inch 1 inch
Sum – answer in addition problem.
*Triangle – 3 sided figure woth connected sides.
*Unit rate – the rate that is over 1 unit.
Unlike fractions – fractions where the bottom numbers aren’t alike.	1/3 and 1/8 are unlike fractions
Value -
*Variable – an unknown quantity in an equation represented by a letter	In A + 6 = 8, A is the variable
Volume – measure of space inside a 3 dimensional object.	V = L * W * H
Whole numbers –
Word Names – names for numbers.