# Math Midterm

### 104 terms by HenryMC

#### Study  only

Flashcards Flashcards

Scatter Scatter

Scatter Scatter

## Create a new folder

Notecards on the study guide

2 or more numbers that are added

### Difference

The result of subtraction

### Subtrahend

A number that is being subtracted

### Minuend

A number from which another number is being subtracted

### Inverse operation

Operations that undo one another

### Fact family

A group of 3 numbers related by addition and subtraction or multiplication or division

### Factors

2 or more numbers that are multiplied

### Product

The result of multiplication

### Quotient

The result of division

### Divisor

The number by which another number is divided

### Dividend

A number that is divided

### Remainder

An amount left after division

### Fraction

Numbers that name parts of a whole

### Denominator

The bottom number in a fraction

### Numerator

The top number in a fraction

### Line

Straight collection of points extending in opposite directions without end

### Ray

A part of a line that begins at a point and continues without end in one direction

### Segment

A part of a line with 2 distinct endpoints

### Perimeter

The distance around a shape

1,2,3,4,5,6...

0,1,2,3,4,5...

### Negative numbers

numbers less than 0

### Sequence

A list of numbers arranged according to a certain rule

### Terms

Numbers in a sequence

### Even numbers

Numbers that can be divided by 2 without a remainder

### Odd numbers

Numbers that can't be divided by 2 without a remainder

### Place value

The value of a digit based on its position within a number

### Positive Numbers

Numbers greater than 0

### Opposites

2 numbers whose sum is 0

### Integers

...-3,-2,-1,0,1,2,3...

### Estimate

To determine an approximate value

### Mixed number

A whole numbers and a fraction together

### Average

The number found when the sum of 2 or more numbers are divided by the number of addends

### Prime numbers

Numbers whose only 2 factors are itself and 1

### Factors

A whole number that divides another whole number without a remainder

### GCF

The largest number that is a factor of 2 or more given numbers

### Improper fraction

A fraction with a numerator that is equal to or greater than the denominator

### Ratio

A comparison of 2 numbers by division

### Multiples

Products of a selected counting number and other counting numbers

### Reduce

Rewrite a fraction in lowest terms

### Circumference

The distance around a circle

### Diameter

The distance across a circle through its center

The distance from the center of the circle to a point on the outside

### Compass

A tool used to draw circles

### Concentric circles

2 or more circles with a common center

### Circle

A closed, curved shape in which all points on the shape are the same distance from its center

### Plane

A flat surface that has no boundaries

### Parallel lines

Lines in the same plane that don't intersect

### Intersect

2 lines that share a point

### Perpendicular lines

2 lines that intersect at right angles

### Oblique lines

Lines that are in the same plane that are neither parallel nor perpendicular

### Angles

The opening that is formed When2 lines, rays, or segments meet

### Vertex

A point of an angle or polygon where 2 or more lines rays or segments meet

### Right angle

An angle whose opening forms a square corner

### Acute angle

An angle whose opening is smaller than a right angles

### Obtuse angle

An angle whose opening is larger than a right angle and smaller than a straight line

### LCM

The smallest whole number that is a multiple of 2 or more given
numbers

### Reciprocal

2 numbers whose product is 1

### Term

A number that serves as a numerator or denominator

### Degrees

Units for measuring angles

### Protractor

A tool used to measure and draw angles

### Area

The number of square units needed to cover a surface

### Expanded Notation

A way of writing of writing a number as the sum of the products of the digits and the place values of the digits and the place value of the digits

### A.M.

The period of time from midnight to just before noon

### P.M.

The period of time from noon to just before midnight

### PI

The number of diameters equal to the circumference of a circle

### Percent

A fraction with a denominator of 100 expressed as a percent sign

### Decimal point

The symbol in a decimal number used as a reference for place value

### Decimal place

Places to the right of the decimal pint

### Exponent

The upper number in an exponential expression

### Base

The lower number in an exponential expression

### Square root

One of 2 factors of a number

### Perfect square

The product when a whole number is multiplied by itself

### Circle graphs

A method of displaying data often using percentages

### Quantitative

Expressed in or relating to quantities or numbers

### Qualitative

Expressed in or relating to categories rather than quantities or numbers

### Sales tax

The fee charged on the sale of an item and based upon the item's purchase

### Equivalent fractions

Different fractions that name the same amount

### Sector

A region bordered by part of a circle and 2 radii

### Mean

The average of a list of numbers

### Median

The middle number of an ordered list of numbers

### Mode

The number or numbers that appears most often in a list of data

### Bimodal

Having 2 or more modes

### Range

The difference between the largest and smallest numbers on the list

### Common denominators

A number that is a denominator of 2 or more fractions

### Probability

The ratio of favorable outcomes to all possible outcomes

### Chance

A way of expressing the like hood of an event as a percentage

3 sided polygon

4 sided polygon

5 sided polygon

6 sided polygon

8 sided polygon

### Polygon

A closed, flat shape with straight sides

### Regular polygon

A polygon in which all sides have equal length and all angels have equal measure

### Congruent

Having the same size and shape

### Side

A line segment hat is part of a polygon

Changing the order of the addends does not change the sum

The sum of any number and 0 is the initial number

### Commutative prop. of multiplication

Changing the order of the factors does not change the sum

### Identity prop. of multiplication

The product of any number and 1 is equal to the initial number

### Zero prop. of multiplication

Any number times 0 is 0

The grouping of the addends does not change the sum

### Associative prop. of multiplication

The grouping of the factors does not change the product

Example: