Math Vocabulary Highlands Elementary School

add To find how many in all.

Sum The answer to an addition problem.

Subtract To take objects away from a group.

Difference The answer to a subtraction problem.

Part Some of a group.

Whole The entire group.

Doubles An addition fact with two of the same number.

More Greater amount.

Fewer Smaller amount.

Patter n A repeated sequence.

Equivalent Fraction Fractions that name the same part or amount and are equal in value

Commutative Property When the order of two or more addends are changed, the sum is the same.

Mixed Number A number that is made up of a whole number and a fraction

Addends Any group of numbers added together to form a sum.

Associative Property When the grouping of addends is different, the sum is the same.

Least Common Multiple (LCM) The smallest number, other than zero, that is a common multiple of 2 or more numbers

Improper Fraction A fraction that has the numerator is greater than the denominator. 15 4

Prime Number A whole number greater than 1 and has only 2 multiples, 1 and itself. 331

Least Common Denominator (LCD) The least common multiple (LCM) of 2 or more denominators LCD = 2

Composite Number A whole number greater than 1 that has more than 2 multiples

Hundred Amount that is equivalent to 10 tens. 100

Least Fewest in quantity or amount.

Equal to Has the same value as.

Thousan d Amount that is equal to 10 hundreds

Plus A symbol that shows addition.

Estimate To find an amount that is close to the exact number. Estimated: 500 Jelly Beans

Regroup An action that involves changing from one form to another equal form

Capacit y The amount that a container can hold. Capacity = 2 liters

Cup A unit of capacity.

Pound A unit of weight that is equal to 16 ounces.

Pint A unit of capacity that is equal to 2 cups.

Gr am A unit of mass.

Pattern Unit A sequence of elements that is repeated over and over again.

Halves Two equal parts.

Minute A unit of time that is equal to 60 seconds.

Hour A unit of time that is equal to 60 minutes.

Compatible Numbers Numbers that are easy to compute mentally.

Expanded Form A way to write numbers by showing the value of each digit

Word Form A way to write numbers by using words Four thousand seven hundred eighty- three

Standard Form A way to write numbers by using the digits 0-9 with each digit having a place value

Round A number that tells about how many or about how much

Data Information collected about people or things.

Frequency Table A table that uses numbers to show data. WeeksBananas Eaten Monkeys’ Eating Habits

Tally Table A table that uses tally marks to show data. GIRLSBOYS

Key The part of a map or graph that explains the symbols. = 2 apples 3 apples

Pictograph A graph that uses pictures to show and compare information. = 2 apples 3 apples

Line Plot A graph that records each piece of data on a number line.

Bar Graph A graph that uses bars to show data.

Multipl y When you can combine equal parts, you can multiply to find how many in all; the opposite operation of division.

Factor A number that is multiplied by another number to find a product. 4520

Array A set of objects in rows and columns.

Produ ct The answer to any multiplication problem. 5x6 = 30

Division To separate into equal groups.

Dividend The number that is to be divided in a division problem.

Quotient The answer to a division problem.

Fact Family A set of related addition and subtraction or multiplication and division number sentences.

Eleven 10 and 1 more.

Twelve 10 and 2 more.

Thirteen 10 and 3 more.

Fourteen 10 and 4 more.

Fifteen 10 and 5 more.

Sixteen 10 and 6 more.

Sevente en 10 and 7 more.

Eighteen 10 and 8 more.

Nineteen 10 and 9 more.

Rotation The movement of a shape to a new position by turning the shape around a point.

Reflection The movement of a shape to a new position by flipping the shape over a line.

Are a The number of square units needed to cover a flat surface. 6 units 5 units 5x6=30 Area= 30 Square Units

Perimeter The distance around a shape. 6 units 5 units (6+6)+(5+5)= 22 Units

One - Dimensi onal Measured in only one direction, such as length. 6 Units

Two Dimensional Shape A shape that lies in a plane; A shape that has length and width. 6 units 5 units

Three Dimensional Shape A shape having length, height, and width. 6 Units 5 Units 4 Units