Vocabulary Words
Test 1 – Addition – Vocabulary Words
- sum – the answer to an addition problem
- addends – numbers added together to give a sum
Example: 2 + 7 = 9; the numbers 2 and 7 are the addends
- Identify (Zero) Property of Addition – the sum of any numbers and zero is that same number
Example: 127 + 0 = 127
- Commutative (Order) Property of Addition – numbers can be added in any order and the sum will be the same
Example: 5 + 8 = 13 and 8 + 5 = 13
- Associative (Grouping) Property of Addition – the grouping of addends can be changed and the sum will be the same
Example: (3 + 4) =5 = 12 and 3 + (4 + 5) = 12
Test 2– Subtraction – Vocabulary Words
- fact family – a group of related facts using the same numbers
- difference – the answer when subtracting two numbers
- sum – the answer to an addition problem
- addends – numbers added together to give a sum
Example: 6 + 5 = 11; the numbers 6 and 5 are the addends
- Commutative (Order) Property of Addition – numbers can be added in any order and the sum will be the same
Example: 2 + 7 = 9 and 7 + 2 = 9
Example: 2 +7 = 7 + 2
Test 3– Place Value – Vocabulary Words
- digits – the symbols 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9 used to write numbers
- place value – the value given to the place a digit has in a number
Example: In 4, 876, the place value of the digit 8 is the hundreds
- standard form – a way to write a number showing only its digits
Example: 9,763
- expanded form – a number written as the sum of the values of its digits
Example: 3,458 = 3,000 + 400 + 50 + 8
- word form – a number written in words
Example: 3,458 = three thousand, four hundred fifty-eight
Test 4– Comparing and Ordering – Vocabulary Words
- period – a group of three digits in a number, separated by a comma
- compare – to decide if one number is greater than or less than another number
Example: 54 > 30 (54 is greater than 30) and 13 < 28 (13 is less than 28)
- order – to arrange numbers from least to greatest or from greatest to least
- equation – a number sentence that uses = (is equal to)
Example: 20 + 9 = 29 or 30 +12 = 44 -2
- place value – the value given to the place a digit has in a number
Example: In 6,871, the place value of the digit 6 is the thousands
Test 5– Rounding – Vocabulary Words
- rounding – to replace a number with a number that tells about how much or how many to the nearest ten, hundred, thousand, and so on
Example: 72 rounded to the nearest 10 is 70
- estimating - to give an approximate number or answer
- difference – the answer when subtracting two numbers
- equation – a number sentence that uses = (is equal to)
Example: 52 + 9 = 61 or 30 +10 = 44 -2
- order – to arrange numbers from least to greatest or from greatest to least
Test 6– Data – Vocabulary Words
- bar graph – a graph using bars to show data
- pictograph – a graph using pictures or symbols to show data
- key –explanation of what each symbol represents in a pictograph
- line plot – a way to organize data on a line
- scale – the numbers that show the units used on a graph
Test 7– Introduction to Multiplication – Vocabulary Words
- multiplication – an operation that gives the total number when you put together equal groups
- factors –numbers that are multiplied together to give a product
Example: 7 x 3 =21 the 7 and 3 are the factors
- product – the answer to a multiplication problem
Example: 4 x 3 = 12 the 12 is the product
- arrays – a way of displaying objects in rows and columns
- Commutative (Order) Property of Multiplication – numbers can be multiplied in any order and the product will be the same
Test 8– Multiplication Facts: Use Patterns– Vocabulary Words
- Identify (One) Property of Multiplication – the product of any number and 1 is that number
- product – the answer to a multiplication problem
Example: 4 x 6 = 24 the 24 is the product
- multiples – the product of the number an any other whole number
Example: 0, 4, 8, 12, and 16 are multiples of 4
- Zero Property of Multiplication – the product of any number and zero is zero
- array - a way of displaying objects in rows and columns
Test 9– Multiplication Facts: Use Known Facts– Vocabulary Words
- factor – numbers that are multiplied together to give a product
Example: 8 x 3 =24 the 8 and 3 are the factors
- array – a way of displaying objects in rows and columns
- multiply – when you put together equal groups to get the total number
- Commutative (Order) Property of Multiplication – numbers can be multiplied in any order and the product will be the same
- Zero Property of Multiplication - the product of any number and zero is zero
Test 10 – Meanings of Multiplication– Vocabulary Words
- division –an operation that tells how many equal groups there are or how many are in each group
- Commutative (Order) Property of Multiplication – numbers can be multiplied in any order and the product will be the same
- product – the answer to a multiplication problem
Example: 5 x 7 = 35 the 35 is the product
- quotient – the answer in a division problem
- Identity (One) Property of Multiplication - the product of any number and 1 is that number
Test 11 – Geometry– Vocabulary Words
- line segment – a part of a line that has two endpoints
- right angle – an angle that forms a square corner
- vertex – the end point of two rays that form an angle
- scalene triangle –a triangle with no sides the same length
- rhombus – a quadrilateral with opposite sides parallel and all sides the same length
Test 12 – Intro to Fractions– Vocabulary Words
- mixed number – a number with a whole number part and a fraction
- denominator – the number below the fraction bar in a fraction, the total number of equal parts in all
- fraction – a symbol, such as , , or , used to name a part of a whole, a part of a set, or a location on a number line
- unit fraction – a fraction of a numerator of 1
- numerator – the number above the fraction bar in a fraction
Test 14 – Liquid, Volume, and Mass – Vocabulary Words
- mass- a measure of the amount of matter in an object
- capacity - the volume of a container measured in liquid units
- weight – a measure of how heavy an object is
- pan balance – a tool used to measure the mass of objects
- measuring cup – a tool used to measure the volume of liquid
Test 16 – Telling Time – Vocabulary Words
- hour – a unit of time equal to 60 minutes
- elapsed time – the total amount of time that passes from the starting time to the ending time
- quarter hour – a unit of time equal to 15 minutes
- minute – a unit of time equal to 60 seconds
- half hour – a unit of time equal to 30 minutes
Test 18– Perimeter – Vocabulary Words
- perimeter – the distance around a figure
- mile – a measure of longer distances; it is too long to use a ruler or a yardstick to measure it
- pentagon – a five-sided figure
- scalene – a triangle with no equal sides
- ruler – a tool used to measure shorter distances like the length of your math textbook
Test 19 – Area – Vocabulary Words
- square unit – a square with sides that are each 1 unit long
- area – the number of square units needed to cover a region
- perimeter – the distance around a figure
- meter – a customary unit of length
- line segment – part of a line with two endpoints