harcourt math glossary
TRANSCRIPT
Harcourt Math Glossary
Grade 5
A absolute value acute angle acute triangle addend addition angle area array ascending Associative Property of Addition Associative Property of Multiplication average axis B bar graph base
httpwwwhbschoolcomglossarymath2index5html (1 of 13)222005 92551 AM
Harcourt Math Glossary
base benchmark billion C capacity cardinal number centimeter central angle certain chord circle circle graph circumference closed figure common factor common multiple Commutative Property of Addition Commutative Property of Multiplication compass compatible number composite number
httpwwwhbschoolcomglossarymath2index5html (2 of 13)222005 92551 AM
Harcourt Math Glossary
cone congruent congruent figures contrast coordinate plane coordinates cube cubic unit cumulative frequency cup (c) cylinder D data decimal number decimal point decimal system decimeter (dm) degree(deg) degree Celsius (degC) degree Fahrenheit (degF) denominator descending
httpwwwhbschoolcomglossarymath2index5html (3 of 13)222005 92551 AM
Harcourt Math Glossary
diameter difference digit dimension Distributive Property of Multiplication dividend divisible division divisor double-bar graph E edge elapsed time equally likely equation equilateral triangle equivalent equivalent decimals equivalent fractions equivalent ratios estimate (noun)
httpwwwhbschoolcomglossarymath2index5html (4 of 13)222005 92551 AM
Harcourt Math Glossary
estimate (verb) evaluate event expanded form exponent expression F face factor factor tree figurate numbers foot (ft) formula fraction frequency frequency table function function table G gallon gram greater than greatest common factor
httpwwwhbschoolcomglossarymath2index5html (5 of 13)222005 92551 AM
Harcourt Math Glossary
H height hexagon histogram hundredth hypotenuse I impossible inch inequality integers intersecting lines interval inverse operations isosceles triangle J K kilogram (kg) kiloliter (kL) kilometer (km) L least common denominator (LCD) least common multiple (LCM)
httpwwwhbschoolcomglossarymath2index5html (6 of 13)222005 92551 AM
Harcourt Math Glossary
leg less than (lt) like fractions line linear unit line graph line plot line segment line symmetry liter (L) M map scale mass mean median meter mile milligram (mg) milliliter (mL) millimeter (mm) million mixed number mode
httpwwwhbschoolcomglossarymath2index5html (7 of 13)222005 92551 AM
Harcourt Math Glossary
multiple multiplication multistep problem N negative integer net nominal number number line numerator O obtuse angle obtuse triangle octagon opposites ordered pair order of operations ordinal number origin ounce (oz) outcome outlier P parallel lines parallelogram
httpwwwhbschoolcomglossarymath2index5html (8 of 13)222005 92551 AM
Harcourt Math Glossary
parentheses pentagon percent perimeter period perpendicular lines
pictograph pint place value plane plane figure point point symmetry polygon polyhedron positive integer possible outcomes pound (lb) precision prediction prime factorization prime number
httpwwwhbschoolcomglossarymath2index5html (9 of 13)222005 92551 AM
Harcourt Math Glossary
prioritize prism probability product Property of One proportion protractor pyramid Q quadrilateral quart quotient R radius range ratio ray reciprocal rectangle rectangular prism reflection regular polygon rhombus right angle
httpwwwhbschoolcomglossarymath2index5html (10 of 13)222005 92551 AM
Harcourt Math Glossary
right triangle rotation rotational symmetry rounding S scale scale drawing scalene triangle schedule scientific notation similar figures simplest form solid figure solution sphere square square number square pyramid square unit standard form stem-and-leaf plot subtraction
httpwwwhbschoolcomglossarymath2index5html (11 of 13)222005 92551 AM
Harcourt Math Glossary
sum surface area survey T tally table tangram tenth ten-thousandth tessellation thousandth three-dimensional ton transformation translation (slide) trapezoid tree diagram triangle triangular number two-dimensional U unlike fractions unlikely V variable
httpwwwhbschoolcomglossarymath2index5html (12 of 13)222005 92551 AM
Harcourt Math Glossary
Venn diagram vertex volume W whole number word form X x-axis x-coordinate Y y-axis y-coordinate Z Zero Property of Addition Zero Property of Multiplication -- Tables -- metric customary time formulas symbols
httpwwwhbschoolcomglossarymath2index5html (13 of 13)222005 92551 AM
Grade 5 Words
Grade 5
A absolute value acute angle acute triangle addend addition angle area array ascending Associative Property of Addition Associative Property of Multiplication average axis B bar graph base base benchmark billion C capacity
httpwwwhbschoolcomglossarymath2wordswords5html (1 of 13)222005 92556 AM
Grade 5 Words
cardinal number centimeter central angle certain chord circle circle graph circumference closed figure common factor common multiple Commutative Property of Addition Commutative Property of Multiplication compass compatible number composite number cone congruent congruent figures contrast coordinate plane coordinates
httpwwwhbschoolcomglossarymath2wordswords5html (2 of 13)222005 92556 AM
Grade 5 Words
cube cubic unit cumulative frequency cup (c) cylinder D data decimal number decimal point decimal system decimeter (dm) degree(deg) degree Celsius (degC) degree Fahrenheit (degF) denominator descending diameter difference digit dimension Distributive Property of Multiplication dividend divisible
httpwwwhbschoolcomglossarymath2wordswords5html (3 of 13)222005 92556 AM
Grade 5 Words
division divisor double-bar graph E edge elapsed time equally likely equation equilateral triangle equivalent equivalent decimals equivalent fractions equivalent ratios estimate (noun) estimate (verb) evaluate event expanded form exponent expression F face factor
httpwwwhbschoolcomglossarymath2wordswords5html (4 of 13)222005 92556 AM
Grade 5 Words
factor tree figurate numbers foot (ft) formula fraction frequency frequency table function function table G gallon gram greater than greatest common factor H height hexagon histogram hundredth hypotenuse I impossible inch
httpwwwhbschoolcomglossarymath2wordswords5html (5 of 13)222005 92556 AM
Grade 5 Words
inequality integers intersecting lines interval inverse operations isosceles triangle J K kilogram (kg) kiloliter (kL) kilometer (km) L least common denominator (LCD) least common multiple (LCM) leg less than (lt) like fractions line linear unit line graph line plot line segment line symmetry liter (L)
httpwwwhbschoolcomglossarymath2wordswords5html (6 of 13)222005 92556 AM
Grade 5 Words
M map scale mass mean median meter mile milligram (mg) milliliter (mL) millimeter (mm) million mixed number mode multiple multiplication multistep problem N negative integer net nominal number number line numerator O
httpwwwhbschoolcomglossarymath2wordswords5html (7 of 13)222005 92556 AM
Grade 5 Words
obtuse angle obtuse triangle octagon opposites ordered pair order of operations ordinal number origin ounce (oz) outcome outlier P parallel lines parallelogram parentheses pentagon percent perimeter period perpendicular lines
pictograph pint
httpwwwhbschoolcomglossarymath2wordswords5html (8 of 13)222005 92556 AM
Grade 5 Words
place value plane plane figure point point symmetry polygon polyhedron positive integer possible outcomes pound (lb) precision prediction prime factorization prime number prioritize prism probability product Property of One proportion protractor pyramid
httpwwwhbschoolcomglossarymath2wordswords5html (9 of 13)222005 92556 AM
Grade 5 Words
Q quadrilateral quart quotient R radius range ratio ray reciprocal rectangle rectangular prism reflection regular polygon rhombus right angle right triangle rotation rotational symmetry rounding S scale scale drawing
httpwwwhbschoolcomglossarymath2wordswords5html (10 of 13)222005 92556 AM
Grade 5 Words
scalene triangle schedule scientific notation similar figures simplest form solid figure solution sphere square square number square pyramid square unit standard form stem-and-leaf plot subtraction sum surface area survey T tally table tangram tenth ten-thousandth
httpwwwhbschoolcomglossarymath2wordswords5html (11 of 13)222005 92556 AM
Grade 5 Words
tessellation thousandth three-dimensional ton transformation translation (slide) trapezoid tree diagram triangle triangular number two-dimensional U unlike fractions unlikely V variable Venn diagram vertex volume W whole number word form X x-axis
httpwwwhbschoolcomglossarymath2wordswords5html (12 of 13)222005 92556 AM
Grade 5 Words
x-coordinate Y y-axis y-coordinate Z Zero Property of Addition Zero Property of Multiplication -- Tables -- metric customary time formulas symbols
httpwwwhbschoolcomglossarymath2wordswords5html (13 of 13)222005 92556 AM
Associative Property of Multiplication
Associative Property of Multiplication
The property that states that the way factors are grouped does not change the product
Example
(2 x 3) x 4 = 2 x (3 x 4)
6 x 4 = 2 x 12 24 = 24
httpwwwhbschoolcomglossarymath2definegr5asso_prop_multi5html222005 92556 AM
Harcourt Math Glossary
Grade K
A above add after afternoon alike B bar graph before below between bottom C calendar circle clocks cone cube cylinder D
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Harcourt Math Glossary
dime E eight eighteen eleven equals equal parts evening F fifteen fifth first five four fourteen fourth G H halves heavier I inside J K L last left
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Harcourt Math Glossary
less lighter long longer longest M middle minus money more morning N next nickel nine nineteen not alike O outside over P pattern pattern unit penny picture graph
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Harcourt Math Glossary
plus Q quarter R rectangle right S same seasons second seven seventeen shapes short shorter shortest six sixteen sort sphere square subtract T tall
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Harcourt Math Glossary
taller tallest ten third thirteen thirty three top triangle twelve twenty twenty-eight twenty-five twenty-four twenty-nine twenty-one twenty-seven twenty-six twenty-three twenty-two two U under V
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Harcourt Math Glossary
W X Y Z zero
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Harcourt Math Glossary
Grade 1
A add addition sentence after B balance bar graph before between C calendar centimeter circle cone corner count back count on cube cylinder D
httpwwwhbschoolcomglossarymath2index1html (1 of 5)222005 92608 AM
Harcourt Math Glossary
day difference dime doubles doubles plus one E equal parts equals estimate even numbers F fact family fewer flat surface fractions G greater than H half hour heavier hour hour hand I inch J K
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Harcourt Math Glossary
L less than lighter line of symmetry M minus minute hand month more than N nickel number line number sentence O oclock odd numbers one dollar one less one more ones Order Property ordinal numbers P pattern pattern unit
httpwwwhbschoolcomglossarymath2index1html (3 of 5)222005 92608 AM
Harcourt Math Glossary
penny picture graph plus pyramid Q quarter R rectangle rectangular prism related facts rule ruler S side sort sphere square subtract subtraction sentence sum T tally chart tally marks ten less
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Harcourt Math Glossary
ten more tens trade triangle U V W X Y Z
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Harcourt Math Glossary
Grade 2
A AM add addend after array B bar graph before between C calendar centimeter circle cone congruent figures corner count back count on cube
httpwwwhbschoolcomglossarymath2index2html (1 of 5)222005 92610 AM
Harcourt Math Glossary
cup cylinder D difference digits dime divide dollar doubles doubles plus one E edge equal groups equal parts equal sign equal to estimate even numbers F face fact family flip foot fractions
httpwwwhbschoolcomglossarymath2index2html (2 of 5)222005 92610 AM
Harcourt Math Glossary
G gram greater than gt H half dollar half hour hour hundred hundreds I inch J K L less than lt line of symmetry liter M meter minutes multiplication sentence multiply N nickel number sentences O odd numbers
httpwwwhbschoolcomglossarymath2index2html (3 of 5)222005 92610 AM
Harcourt Math Glossary
ones Order Property ordinal numbers ounce oval P PM pattern penny perimeter pictograph picture graph pint pound product pyramid Q quart quarter R rectangle rectangular prism regroup round
httpwwwhbschoolcomglossarymath2index2html (4 of 5)222005 92610 AM
Harcourt Math Glossary
S side skip-count slide sphere square subtract sum T table tally marks temperature ten frame tens triangle turn U V W X Y Z Zero Property
httpwwwhbschoolcomglossarymath2index2html (5 of 5)222005 92610 AM
Harcourt Math Glossary
Grade 3
A acute angle acute triangle addend addition AM angle area array B bar graph benchmark numbers C calendar capacity cardinal number center centimeter certain
httpwwwhbschoolcomglossarymath2index3html (1 of 11)222005 92612 AM
Harcourt Math Glossary
classify closed figure compare cone congruent figures corner counting on counting up cube cubic unit cup cylinder D data decimal decimal point decimeter degree Celsius (degC) degree Fahrenheit (degF) denominator diameter difference digit
httpwwwhbschoolcomglossarymath2index3html (2 of 11)222005 92612 AM
Harcourt Math Glossary
divide dividend division divisor doubles doubles minus one doubles plus one E edge elapsed time equal sign equally likely equilateral triangle equivalent equivalent fractions estimate (noun) estimate (verb) even number event expanded form experiment expression F
httpwwwhbschoolcomglossarymath2index3html (3 of 11)222005 92612 AM
Harcourt Math Glossary
face fact family factor fair flip foot fraction frequency table G gallon gram greater than (gt) grid Grouping Property of Addition Grouping Property of Multiplication H hexagon horizontal bar graph hour (hr) hour hand hundredth I impossible
httpwwwhbschoolcomglossarymath2index3html (4 of 11)222005 92612 AM
Harcourt Math Glossary
inch intersecting lines inverse operations isosceles triangle J K key kilogram (kg) kilometer (km) L least likely less than (lt) like fractions likely line line graph line of symmetry line plot line segment liter (L) M make a ten mass meter (m) midnight
httpwwwhbschoolcomglossarymath2index3html (5 of 11)222005 92612 AM
Harcourt Math Glossary
mile (mi) milliliter (mL) minute (min) minute hand mixed number mode most likely multiplication multiply multistep problem N noon number line number sentence numerator O obtuse angle obtuse triangle octagon odd number open figure opposite operations Order Property of Addition
httpwwwhbschoolcomglossarymath2index3html (6 of 11)222005 92612 AM
Harcourt Math Glossary
Order Property of Multiplication ordered pair ordinal number ounce (oz) outcome P parallel lines parallelogram pentagon perimeter pictograph pint (pt) place value place-value charts plane plane figure PM point point symmetry polygon possible outcome pound (lb)
httpwwwhbschoolcomglossarymath2index3html (7 of 11)222005 92612 AM
Harcourt Math Glossary
predict product pyramid Q quadrilateral quart quotient R radius range ray rectangle rectangular prism regroup remainder results rhombus right angle right triangle round rounding S scale scalene triangle
httpwwwhbschoolcomglossarymath2index3html (8 of 11)222005 92612 AM
Harcourt Math Glossary
schedule sequence similar simplest form slide solid figure sphere square square number square pyramid square unit standard form subtraction sum survey symmetry T tally table tangram tenth tessellate tessellation time line
httpwwwhbschoolcomglossarymath2index3html (9 of 11)222005 92612 AM
Harcourt Math Glossary
trapezoid triangle turn U unit cost unlikely V variable vertex vertical bar graph volume W whole number word form X Y yard Z Zero Property of Addition Zero Property of Multiplication -- Tables -- metric customary time money
httpwwwhbschoolcomglossarymath2index3html (10 of 11)222005 92612 AM
Harcourt Math Glossary
symbols
httpwwwhbschoolcomglossarymath2index3html (11 of 11)222005 92612 AM
Harcourt Math Glossary
Grade 4
A AM acute angle addend addition analog clock angle area array Associative Property of Addition Associative Property of Multiplication average B bar graph benchmark C calendar capacity
httpwwwhbschoolcomglossarymath2index4html (1 of 13)222005 92616 AM
Harcourt Math Glossary
cardinal number center centimeter (cm) century certain chord circle circle graph circumference closed figure compass compatible numbers composite number cone congruent congruent figures coordinate grid corner cube cubic unit cumulative frequency
httpwwwhbschoolcomglossarymath2index4html (2 of 13)222005 92616 AM
Harcourt Math Glossary
cup (c) cylinder D data decade decimal decimal number system decimal point decimeter degree degree Celsius (degC) degree Fahrenheit (degF) denominator diameter difference digit digital clock dimension Distributive Property of Multiplication dividend divisible
httpwwwhbschoolcomglossarymath2index4html (3 of 13)222005 92616 AM
Harcourt Math Glossary
division divisor double-bar graph E edge elapsed time equally likely equation equilateral triangle equivalent equivalent decimals equivalent fractions estimate (noun) estimate (verb) event expanded form expression F face fact family factor factor tree fairness
httpwwwhbschoolcomglossarymath2index4html (4 of 13)222005 92616 AM
Harcourt Math Glossary
flip (reflection) foot (ft) formula fraction frequency frequency table function table G gallon (gal) gram (g) greater than (gt) grid Grouping Property of Addition Grouping Property of Multiplication H hexagon hour (hr) hour hand (hr) horizontal hundredth I impossible inch (in)
httpwwwhbschoolcomglossarymath2index4html (5 of 13)222005 92616 AM
Harcourt Math Glossary
intersecting lines interval inverse operations isosceles triangle J K key kilogram (kg) kilometer (km) L leaf less than (lt) like fractions likely line line graph line plot line segment line symmetry linear units liter (L) M mass mathematical probability
httpwwwhbschoolcomglossarymath2index4html (6 of 13)222005 92616 AM
Harcourt Math Glossary
mean median meter (m) mile (mi) milliliter (mL) millions minute (min) minute hand mixed number mode multiple multiplication multistep problem N negative numbers net nominal number number line numerator O obtuse angle octagon odd number one-dimensional
httpwwwhbschoolcomglossarymath2index4html (7 of 13)222005 92616 AM
Harcourt Math Glossary
open figure Order Property of Addition Order Property of Multiplication ordered pair ordinal number ounce (oz) outcome outlier P PM parallel lines parallelogram parentheses partial product pentagon perimeter period perpedicular lines pictograph pint (pt) place value plane
httpwwwhbschoolcomglossarymath2index4html (8 of 13)222005 92616 AM
Harcourt Math Glossary
plane figure point polygon positive numbers pound (lb) predict prime factor prime number probability product Property of One protractor pyramid Q quadrilateral quart (qt) quotient R radius range ray rectangle rectangular prism reflection (flip)
httpwwwhbschoolcomglossarymath2index4html (9 of 13)222005 92616 AM
Harcourt Math Glossary
regroup regular polygon remainder rhombus right angle right triangle rotation (turn) rotational symmetry rounding S scale scalene triangle schedule seconds (sec) similar similar figures simplest form slide (translation) solid figure sphere square square number
httpwwwhbschoolcomglossarymath2index4html (10 of 13)222005 92616 AM
Harcourt Math Glossary
square pyramid square unit standard form stem stem-and-leaf plot subtraction sum survey T tally table tenth tessellation thousandth three-dimensional time line ton (T) transformation translation (slide) trapezoid tree diagram trends triangle turn (rotation)
httpwwwhbschoolcomglossarymath2index4html (11 of 13)222005 92616 AM
Harcourt Math Glossary
two-dimensional U unlike fractions unlikely V variable Venn diagram vertex vertical volume W weight whole number word form X x-axis x-coordinate Y y-axis y-coordinate yard (yd) Z Zero Property of Multiplication -- Tables -- metric
httpwwwhbschoolcomglossarymath2index4html (12 of 13)222005 92617 AM
Harcourt Math Glossary
customary time money symbols
httpwwwhbschoolcomglossarymath2index4html (13 of 13)222005 92617 AM
Harcourt Math Glossary
Grade 6
A absolute value acute angle acute triangle Addition Property of Equality additive inverse adjacent angles algebraic expression algebraic operating system angle arc area Associative Property average axes B bar graph
httpwwwhbschoolcomglossarymath2index6html (1 of 15)222005 92619 AM
Harcourt Math Glossary
base base biased question biased sample bisect box-and-whisker graph C capacity Celsius center of a circle certain chord circle circle graph circumference closed figure clustering common factor common multiple Commutative Property compatible numbers compensation
httpwwwhbschoolcomglossarymath2index6html (2 of 15)222005 92619 AM
Harcourt Math Glossary
complement complementary angles composite number compound event cone congruent congruent figures congruent polygons convenience sample coordinate plane coordinates corresponding angles corresponding sides cross products cube cumulative frequency customary measurement system cylinder
httpwwwhbschoolcomglossarymath2index6html (3 of 15)222005 92619 AM
Harcourt Math Glossary
D data decimal decimal system degree degree Celsius (degC) degree Fahrenheit (degF) denominator dependent events diameter difference dimension discount Distributive Property of Multiplication dividend divisible Division Property of Equality divisor E edge equally likely
httpwwwhbschoolcomglossarymath2index6html (4 of 15)222005 92619 AM
Harcourt Math Glossary
equation equilateral triangle equivalent equivalent decimals equivalent fractions equivalent ratios estimate (noun) estimate (verb) evaluate event experimental probability exponent expression F face factor factor tree Fahrenheit Fibonacci Sequence formula fractal
httpwwwhbschoolcomglossarymath2index6html (5 of 15)222005 92619 AM
Harcourt Math Glossary
fraction frequency table function Fundamental Counting Principle G Golden Ratio Golden Rectangle greater than greatest common factor (GCF) H height hexagon histogram hypotenuse I Identity Property of One Identity Property of Zero impossible independent events indirect measurement inequality integers
httpwwwhbschoolcomglossarymath2index6html (6 of 15)222005 92619 AM
Harcourt Math Glossary
intersecting lines interval inverse operations isosceles triangle J K L lateral faces least common denominator (LCD) least common multiple (LCM) leg less than like terms line line graph line of symmetry line plot line segment line symmetry lower extreme lower quartile M map scale
httpwwwhbschoolcomglossarymath2index6html (7 of 15)222005 92619 AM
Harcourt Math Glossary
mean measure of central tendency median metric system midpoint mixed number mode multiple multiple-bar graph multiple-line graph Multiplication Property of Equality multistep problem N negative integer net network number line numerator numerical expression O obtuse angle
httpwwwhbschoolcomglossarymath2index6html (8 of 15)222005 92619 AM
Harcourt Math Glossary
obtuse triangle octagon opposites ordered pair order of operations origin outcome outlier overestimate P parallel lines parallelogram pentagon percent perimeter period perpendicular lines
place value plane plane figure point point of rotation polygon
httpwwwhbschoolcomglossarymath2index6html (9 of 15)222005 92619 AM
Harcourt Math Glossary
polyhedron population positive integer precision prediction prime factorization prime number principal prism probability (P) product Property of Zero proportion pyramid Pythagorean Theorem Q quadrants quadrilateral quotient R radius random sample range
httpwwwhbschoolcomglossarymath2index6html (10 of 15)222005 92619 AM
Harcourt Math Glossary
rate ratio rational number ray reciprocal rectangle rectangular prism reflection regular polygon relation repeating decimal rhombus right angle right triangle rotation (turn) rotational symmetry S sales tax sample sample space scale scale
httpwwwhbschoolcomglossarymath2index6html (11 of 15)222005 92619 AM
Harcourt Math Glossary
scale drawing scalene triangle scatterplot sector self-similarity sequence similar figures simple interest simplest form simulation solid figure solution solve an equation sphere square square number square root standard form stem-and-leaf plot straight angle Subtraction Property of Equality sum
httpwwwhbschoolcomglossarymath2index6html (12 of 15)222005 92619 AM
Harcourt Math Glossary
supplementary angles surface area survey systematic sample T tally table tangram term term terms terminating decimal tessellation theoretical probability three-dimensional transformation translation (slide) trapezoid tree diagram triangle triangular number U unbiased sample
httpwwwhbschoolcomglossarymath2index6html (13 of 15)222005 92619 AM
Harcourt Math Glossary
underestimate unit rate unlike fractions upper extreme upper quartile V variable Venn diagram vertex vertical angles volume W whole number X x-axis x-coordinate Y y-axis y-coordinate Z -- Tables -- metric customary time formulas
httpwwwhbschoolcomglossarymath2index6html (14 of 15)222005 92619 AM
Harcourt Math Glossary
symbols
httpwwwhbschoolcomglossarymath2index6html (15 of 15)222005 92619 AM
absolute value
absolute value
The distance of a number from zero on a number line
Example
|-4| The absolute value of -4 is 4
|+4| The absolute value of +4 is 4
httpwwwhbschoolcomglossarymath2definegr5absolute_value5html222005 92620 AM
acute angle
acute angle
An angle that has a measure less than a right angle (less than 90deg)
Example
httpwwwhbschoolcomglossarymath2definegr5acute_angle5html222005 92620 AM
acute triangle
acute triangle
A triangle in which all three angles are acute
Examples
httpwwwhbschoolcomglossarymath2definegr5acute_triangle5html222005 92621 AM
addend
addend
A number that is added to another in an addition problem
Example
2 + 3 = 5
The addends are 2 and 3
httpwwwhbschoolcomglossarymath2definegr5addends5html222005 92621 AM
addition
addition
The process of finding the total number of items when two groups of items are joined addition is the inverse of subtraction
Example
3 + 2 = 5
httpwwwhbschoolcomglossarymath2definegr5addition5html222005 92622 AM
angle
angle
A figure formed by two rays that have a common endpoint
Example
httpwwwhbschoolcomglossarymath2definegr5angle5html222005 92623 AM
area
area
The number of square units needed to cover a surface
Example
The area is 9 square units
httpwwwhbschoolcomglossarymath2definegr5area5html222005 92623 AM
array
array
An arrangement of objects in rows and columns
Example
httpwwwhbschoolcomglossarymath2definegr5array5html222005 92627 AM
ascending
ascending
From least to greatest number
Example
These numbers are in ascending order
1 2 3 4 5 6 7 8 9 10
httpwwwhbschoolcomglossarymath2definegr5ascending5html222005 92627 AM
Associative Property of Addition
Associative Property of Addition
The property that states that the way addends are grouped does not change the sum
Example
(5 + 9) + 3 = 5 + (9 + 3)
14 + 3 = 5 + 12 17 = 17
httpwwwhbschoolcomglossarymath2definegr5asso_prop_add5html222005 92627 AM
average
average
The number found by dividing the sum of a set of numbers by the number of addends
See also mean
httpwwwhbschoolcomglossarymath2definegr5average5html222005 92628 AM
axis
axis
The horizontal or vertical number line used in a coordinate plane the line at the side or bottom of a graph
Example
httpwwwhbschoolcomglossarymath2definegr5axis5html222005 92628 AM
bar graph
bar graph
A graph that uses horizontal or vertical bars to display countable data
Example
httpwwwhbschoolcomglossarymath2definegr5bar_graph5html222005 92629 AM
base
base
A number used as a repeated factor
Example
83= 8 x 8 x 8 The base is 8
httpwwwhbschoolcomglossarymath2definegr5base1_5html222005 92629 AM
base
base
A side of a polygon or a face of a solid figure by which the figure is measured or named
Examples
httpwwwhbschoolcomglossarymath2definegr5base2_5html222005 92630 AM
benchmark
benchmark
A familiar number used as a point of reference
Example
Use the benchmark to decide which is the most reasonable number of beans in the jar
100 400 4000 Benchmark 50 beans
A reasonable number of beans in the jar is 400
httpwwwhbschoolcomglossarymath2definegr5benchmark5html222005 92631 AM
billion
billion
One thousand million
Example
Billions Millions Thousands OnesHundreds Tens Ones Hundreds Tens Ones Hundreds Tens Ones Hundreds Tens Ones
1 0 0 0 0 0 0 0 0 0
httpwwwhbschoolcomglossarymath2definegr5billion5html222005 92631 AM
capacity
capacity
The amount a container can hold when filled
Example
httpwwwhbschoolcomglossarymath2definegr5capacity5html222005 92635 AM
cardinal number
cardinal number
A number that tells how many
Examples
4 puppies 93 cents
httpwwwhbschoolcomglossarymath2definegr5cardinal5html222005 92635 AM
centimeter
centimeter (cm)
A metric unit for measuring length
01 meter = 1 centimeter
httpwwwhbschoolcomglossarymath2definegr5centimeter5html222005 92636 AM
central angle
central angle
The angle formed by two radii of a circle that meet at its center
Example
httpwwwhbschoolcomglossarymath2definegr5central_angle5html222005 92636 AM
certain
certain
Sure to happen will always happen
httpwwwhbschoolcomglossarymath2definegr5certain5html222005 92637 AM
chord
chord
A line segment with its endpoints on a circle
Example
httpwwwhbschoolcomglossarymath2definegr5chord5html222005 92638 AM
circle
circle
A closed plane figure with all points on the figure the same distance from the center
Example
httpwwwhbschoolcomglossarymath2definegr5circle5html222005 92638 AM
circle graph
circle graph
A graph the shows how parts of the data are related to the whole and to each other
Example
httpwwwhbschoolcomglossarymath2definegr5circle_graph5html222005 92639 AM
circumference
circumference
The distance around a circle
Example
httpwwwhbschoolcomglossarymath2definegr5circumference5html222005 92640 AM
closed figure
closed figure
A figure that begins and ends at the same point
Examples
httpwwwhbschoolcomglossarymath2definegr5closed_figure5html222005 92640 AM
common factor
common factor
A number that is a factor of two or more numbers
Example
factors of 6 1 2 3 6
factors of 12 1 2 3 4 6 12
The common factors of 6 and 12 are 1 2 3 and 6
httpwwwhbschoolcomglossarymath2definegr5common_factor5html222005 92641 AM
common multiple
common multiple
A number that is a multiple of two or more numbers
Example
multiples of 4 4 8 12 16 20 24
multiples of 6 6 12 18 24 30
A common multiple of 4 and 6 is 24
httpwwwhbschoolcomglossarymath2definegr5common_multiple5html222005 92641 AM
Commutative Property of Addition
Commutative Property of Addition
The property that states that when the order of two or more addends is changed the sum is the same
Example
4 + 5 = 5 + 4
httpwwwhbschoolcomglossarymath2definegr5Comm_Prop_of_Add5html222005 92641 AM
Commutative Property of Multiplication
Commutative Property of Multiplication
The property that states that when the order of two or more factors is changed the product is the same
Example
5 x 7 = 7 x 5
httpwwwhbschoolcomglossarymath2definegr5Comm_Prop_of_Mult5html222005 92642 AM
compass
compass
A tool used to construct circles
Example
httpwwwhbschoolcomglossarymath2definegr5compass5html222005 92643 AM
compatible number
compatible number
Numbers that are easy to compute mentally
Example
Estimate 4126 divide 8 Think 40 and 8 are compatible numbers 4126 divide 8
41 6 divide
4000 divide 8 = 500 So 4126 divide 8 is about 500
httpwwwhbschoolcomglossarymath2definegr5compatible_number5html222005 92643 AM
composite number
composite number
A whole number having more than two factors
Example
Composite Numbers Not Composite Numbers
Number Factors Number Factors
4 1 2 4 1 1
6 1 2 3 6 2 1 2
8 1 2 4 8 3 1 3
9 1 3 9 5 1 5
httpwwwhbschoolcomglossarymath2definegr5composite_number5html222005 92644 AM
cone
cone
A solid figure that has a circular base and one vertex
Examples
httpwwwhbschoolcomglossarymath2definegr5cone5html222005 92644 AM
congruent
congruent
Having the same size and shape
Example
The triangles are congruent
httpwwwhbschoolcomglossarymath2definegr5congruent5html222005 92645 AM
congruent figures
congruent figures
Figures that have the same size and shape
Example
The triangles are congruent
httpwwwhbschoolcomglossarymath2definegr5congruent_figures5html222005 92646 AM
contrast
contrast
To examine for differences
httpwwwhbschoolcomglossarymath2definegr5contrast5html222005 92646 AM
coordinate plane
coordinate plane
A plane formed by two intersecting and perpendicular number lines called axes
Example
httpwwwhbschoolcomglossarymath2definegr5coordinate_plane5html222005 92647 AM
coordinates
coordinates
The numbers in an ordered pair
Example
The coordinates of A are (1 3) The coordinates of B are (-4 -3)
httpwwwhbschoolcomglossarymath2definegr5coordinates5html222005 92647 AM
cube
cube
A solid figure with six congruent square faces
Examples
httpwwwhbschoolcomglossarymath2definegr5cube5html222005 92648 AM
cubic unit
cubic unit
A unit of volume with dimensions 1 unit x 1 unit x 1 unit
Example
4 cubic units
httpwwwhbschoolcomglossarymath2definegr5cubic_unit5html222005 92649 AM
cumulative frequency
cumulative frequency
A running total of the number of items counted or surveyed
Example
httpwwwhbschoolcomglossarymath2definegr5cumulative_frequency5html222005 92649 AM
cup
cup
A customary unit used to measure capacity
8 ounces = 1 cup
httpwwwhbschoolcomglossarymath2definegr5cup5html222005 92650 AM
cylinder
cylinder
A solid figure that has two parallel bases that are congruent circles
Examples
httpwwwhbschoolcomglossarymath2definegr5cylinder5html222005 92651 AM
data
data
Information collected about people or things
httpwwwhbschoolcomglossarymath2definegr5data5html222005 92651 AM
decimal number
decimal number
A number with one or more digits to the right of the decimal point
Example
327
httpwwwhbschoolcomglossarymath2definegr5decimal_number5html222005 92652 AM
decimal point
decimal point
A symbol used to separate dollars from cents in money and the ones place from the tenths place in decimal numbers
Example
httpwwwhbschoolcomglossarymath2definegr5decimal_point5html222005 92653 AM
decimal system
decimal system
A system of computation based on the number ten
Example
httpwwwhbschoolcomglossarymath2definegr5decimal_system5html222005 92653 AM
decimeter
decimeter
A unit of length in the metric system
10 decimeters = 1 meter
httpwwwhbschoolcomglossarymath2definegr5decimeter5html222005 92654 AM
degree (deg)
degree (deg)
A unit for measuring angles and temperature
Examples
httpwwwhbschoolcomglossarymath2definegr5degree5html222005 92655 AM
degree Celsius (degC)
degree Celsius (degC)
A metric unit for measuring temperature
Example
httpwwwhbschoolcomglossarymath2definegr5degrees_Celsius5html222005 92655 AM
degree Fahrenheit (degF)
degree Fahrenheit (degF)
A customary unit for measuring temperature
Example
httpwwwhbschoolcomglossarymath2definegr5degrees_Fahrenheit5html222005 92656 AM
denominator
denominator
The number below the bar in a fraction that tells how many equal parts are in the whole
Example
httpwwwhbschoolcomglossarymath2definegr5denominator5html222005 92657 AM
descending
descending
From greatest to least number
Example
These numbers are in descending order
10 9 8 7 6 5 4 3 2 1
httpwwwhbschoolcomglossarymath2definegr5descending5html222005 92658 AM
diameter
diameter
A line segment that passes through the center of
a circle and has its endpoints on the circle
Example
diameter
httpwwwhbschoolcomglossarymath2definegr5diameter5html222005 92658 AM
difference
difference
The answer in a subtraction problem
Example
88 ndash 5 = 3 ndash 5
33 is the difference
httpwwwhbschoolcomglossarymath2definegr5difference5html222005 92659 AM
digit
digit
Any one of the ten symbols 0 1 2 3 4 5 6 7 8 or 9 used to write numbers
httpwwwhbschoolcomglossarymath2definegr5digit5html222005 92659 AM
dimension
dimension
A measure in one direction the length width or height of a figure
httpwwwhbschoolcomglossarymath2definegr5dimension5html222005 92659 AM
Distributive Property of Multiplication
Distributive Property of Multiplication
The property that states that multiplying a sum by a number is the same as multiplying each addend by the number and then adding the products
Example
3 x (4 + 2) = (3 x 4) + (3 x 2) 3 x 6 = 12 + 6
18 = 18
httpwwwhbschoolcomglossarymath2definegr5Dist_Prop_of_Mult5html222005 92700 AM
dividend
dividend
The number that is to be divided in a division problem
Example
35 divide 5 = 7
The dividend is 35
httpwwwhbschoolcomglossarymath2definegr5dividend5html222005 92700 AM
divisible
divisible
A number is divisible by another number if the quotient is a whole number and the remainder is zero
Example
21 is divisible by 3
httpwwwhbschoolcomglossarymath2definegr5divisible5html222005 92701 AM
division
division
The process of sharing a number of items to find how many groups can be made or how many items will be in each group division is the inverse of multiplication
Example
6 divide 3 = 2
httpwwwhbschoolcomglossarymath2definegr5division5html222005 92701 AM
divisor
divisor
The number that divides the dividend
Example
18 divide 3 = 6
The divisor is 3
httpwwwhbschoolcomglossarymath2definegr5divisor5html222005 92702 AM
double-bar graph
double-bar graph
A bar graph used to compare two similar kinds of data
Example
httpwwwhbschoolcomglossarymath2definegr5double_bargraph5html222005 92703 AM
edge
edge
The line segment where two faces of a solid figure meet
Example
edge
httpwwwhbschoolcomglossarymath2definegr5edge5html222005 92703 AM
elapsed time
elapsed time
The amount of time that passes between the start of an activity and the end of that activity
Example
httpwwwhbschoolcomglossarymath2definegr5elapsed_time5html222005 92704 AM