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5th Grade Math Vocab
| Question | Answer |
|---|---|
| Angle - | A shape formed by two line segments or rays that share the same endpoint |
| Area - | The measure of the number of unit squares needed to cover a surface |
| Array - | An arrangement of objects in rows and columns |
| Associative Property of Addition - | When the grouping of addends is changed, the sum is the same Example: (5 + 8) + 4 = 5 + (8 + 4) |
| Addend - | A number that is added to another in an addition problem |
| Addition - | Finding the total number of items when two or more groups of items are joined |
| Associative Property of Multiplication - | Factors can be grouped in different ways and still get the same product Example: (2 × 3) × 4 = 2 × (3 × 4) |
| Balance - | Equalize in weight or number |
| Bar Graph - | Graph that uses horizontal or vertical bars to display countable data |
| Benchmark - | A familiar number used as a point of reference |
| Common Denominator - | A common multiple of two or more denominators |
| Common Factor - | A number that is a factor of two or more numbers |
| Common Multiple - | A number that is a multiple of two or more numbers |
| Commutative Property of Addition - | When the order of two addends is changed, the sum is the same Example: 4 + 5 = 5 + 4 |
| Commutative Property of Multiplication - | When the order of two factors is changed, the product is the same Example: 4 × 5 = 5 × 4 |
| Compatible Numbers - | Numbers that are easy to compute with mentally |
| Composite Number - | A number having more than two factors |
| Counting Number - | A whole number that can be used to count a set of objects (1, 2, 3, 4, . . .) |
| Decimal - | A number with one or more digits to the right of the decimal point |
| Decimal Point - | Separate dollars from cents in money and separates the ones place from the tenths place in a decimal |
| Decimal System - | A system of computation based on the number 10 |
| Denominator - | The number below the bar in a fraction - equal parts are in the whole or in the group |
| Difference - | The answer to a subtraction problem |
| Digit - | Any one of the ten symbols 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 used to write numbers |
| Distributive Property - | Multiplying a sum by a number is the same as multiplying each addend in the sum by the number and then adding the products Ex: 3 × (4 + 2) = (3 × 4) + (3 × 2) 3 × 6 = 12 + 6 18 = 18 |
| Divide - | To separate into equal groups; the opposite operation of multiplication |
| Dividend - | The number that is to be divided in a division problem |
| Divisible - | A number is evenly divisible by another number |
| Division - | Process of finding equal groups or how many items will be in each equal group; the opposite operation of multiplication |
| Divisor - | The number that divides the dividend |
| Dot Plot - | A graph that records each piece of data along a number line |
| Equation - | An algebraic or numerical sentence that shows that two quantities are equal |
| Equivalent Decimals - | Decimals that name the same amount |
| Equivalent Fractions - | Fractions that name the same amount or part |
| Estimate - | A number close to an exact amount |
| Even - | A whole number that has a 0, 2, 4, 6, or 8 in the ones place |
| Expanded Form - | A way to write numbers by showing the value of each digit Examples: 832 = 800 + 30 + 2 |
| Expression - | A mathematical phrase that does not have an equal sign |
| Fact Family/Related Facts - | A set of related multiplication and division, or addition and subtraction, equations |
| Factor - | A number multiplied by another number to find a product |
| Fraction - | Names a part of a whole or a part of a group |
| Fraction Greater Than 1 - | Numerator is greater than its denominator |
| Frequency - | The number of times an event occurs |
| Frequency Table - | A table that uses numbers to record data about how often something happens |
| Greater Than - | > |
| Greater Than or Equal To - | ≥ |
| Greatest Common Factor - | The greatest factor that two or more numbers have in common |
| Grid - | Evenly divided and equally spaced squares on a figure or flat surface |
| Horizontal - | Extending left and right |
| Hundredths - | One of 100 equal parts |
| Identity Property of Addition - | When you add zero to a number, the result is that number |
| Identity Property of Multiplication - | The product of any number and 1 is that number |
| Inequality - | A mathematical sentence that contains the symbol <, >, ≤, ≥, or ≠ |
| Inverse Operations - | Opposite operations, or operations that undo each other |
| Least Common Denominator - | The least common multiple of two or more denominators |
| Least Common Multiple - | The least number that is a common multiple of two or more numbers |
| Less Than - | < |
| Less Than or Equal to (≤) - | ≤ |
| Line - | straight path in a plane, extending in both directions with no endpoints |
| Line Segment - | A part of a line that includes two points called endpoints and all the points between them |
| Mass - | The amount of matter in an object |
| Mixed Number - | A number that is made up of a whole number and a fraction |
| Multiple - | The product of two counting numbers is a multiple of each of those numbers |
| Multiplication - | Find the total number of items made up of equal-sized groups or to find the total number of items in a given number of groups |
| Multiply - | Combine equal groups |
| Not Equal To - | ≠ |
| Number Line - | A line on which numbers can be located |
| Numerator - | The number above the bar in a fraction - how many equal parts of the whole or group are being considered |
| Numerical Expression - | A mathematical phrase that uses only numbers and operation signs |
| Overestimate - | An estimate that is greater than the exact answer |
| Pan Balance - | An instrument used to weigh objects and to compare the weights of objects |
| Parentheses - | The symbols used to show which operation or operations in an expression should be done first |
| Partial Product - | A method of multiplying in which the ones, tens, hundreds, and so on are multiplied separately and then the products are added together |
| Partial Quotient - | A method of dividing in which multiples of the divisor are subtracted from the dividend and then the quotients are added together |
| Pattern - | An ordered set of numbers or objects; the order helps you predict what will come next Examples: 2, 4, 6, 8, 10 |
| Perimeter - | The distance around a closed plane figure |
| Period - | Each group of three digits separated by commas in a multi-digit number Example: 85,643,900 has three periods. |
| Pictograph - | A graph that uses pictures to show and compare information |
| Place Value - | The value of each digit in a number based on the location of the digit |
| Prime Number - | A number that has exactly two factors: 1 and itself |
| Product - | The answer to a multiplication problem |
| Profit - | The amount left after all the expenses are subtracted from the amount of money received from selling an item or service |
| Quotient - | The number, not including the remainder, that results from dividing |
| Range - | The difference between the greatest and least numbers in a group |
| Regroup - | To exchange amounts of equal value to rename a number Example: 5 + 8 = 13 ones or 1 ten 3 ones |
| Remainder - | The amount left over when a number cannot be divided equally |
| Right Angle - | An angle that forms a square corner and has a measure of 90˚ |
| Right Triangle - | A triangle that has a right angle |
| Round - | To replace a number with one that is simpler and is approximately the same size as the original number |
| Scale - | A series of numbers placed at fixed distances on a graph to help label the graph |
| Scatter Plot - | A graph that shows a relationship between two sets of data |
| Simplest Form - | A fraction when the numerator and denominator have only 1 as a common factor |
| Simplify - | To find the value of a numerical expression |
| Skip Count - | A pattern of counting forward or backward Example: 5, 10, 15, 20, 25, 30, . . . |
| Solution - | A value that makes an equation true |
| Standard Form - | A way to write numbers by using the digits 0-9, with each digit having a place value Example: 456 standard form |
| Stem-and-Leaf Plot - | A graph that shows groups of data arranged by place value |
| Straight Angle - | An angle whose measure is 180° |
| Subtraction - | Process of finding how many are left when a number of items are taken away from a group of items |
| Sum - | The answer to an addition problem |
| Tenth - | One of ten equal parts |
| Thousandths - | One of one thousand equal parts |
| Underestimate - | An estimate that is less than the exact answer |
| Unit Fraction - | A fraction that has 1 as a numerator |
| Variable - | A letter or symbol that stands for an unknown number or numbers |
| Venn Diagram - | A diagram that shows relationships among sets of things |
| Vertical - | Extending up and down |
| Weight - | How heavy an object is |
| Whole - | All of the parts of a shape or group |
| Whole Number - | One of the numbers 1, 2, 3, 4, . . . |
| Word Form - | A way to write numbers in standard English |
| Zero Property of Multiplication - | The property that states that when you multiply by zero, the product is zero |
| Equal to/ Equivalent - | Having the same value |
Created by:
kristyvland
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