Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

Normal Size Small Size show me how

Normal Size Small Size show me how

# 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