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### 127 Cards in this Set

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 algorithm a number sentence or equation array objects arranged in rows and columns divide sharing objects equally dividend the number to be divided divisor the number you divide by factor(s) the number(s) you multiply product the answer to a multiplication problem quotient the answer to a division problem area the total surface space or amount of an object. Area is measured in square units. Celsius the metric temperature scale measured in degrees. Water freezes at 0 degrees Celsius. calendar a month-by-month picture of a year using months and days centimeter a metric unit measuring 1/100 of a meter capacity how much a container holds cup a unit used for measuring capacity Customary System a measuring system used mainly in the United States Inches, Feet, Yard day a unit for measuring time degrees (temperature) a unit for measuring temperature difference the answer that comes from subtracting one number from another decrease when the temperature drops or goes down on the thermometer decimeter a metric unit measuring 1/10 of a meter Fahrenheit a scale used to measure temperature in degrees foot (ft) a unit for measuring short lengths or distances 1 foot = 12 inches gram a basic metric unit for measuring weight 1 gram = 1,000 milligrams hour (hr) a unit measuring time 1 hour = 60 minutes inch (in.) a unit for measuring length 12 inches = 1 foot kilogram (kg) a metric unit for measuring weight 1 kilogram = 1,000 grams kilometer (km) a metric unit for measuring distance 1 km = 1,000 milliliters liter a basic metric unit for measuring liquids 1 liter = 1,000 milliliters meter (m) a basic unit for measuring length and distance 1 meter = 100 centimeters metric a measuring system based on the decimal system (tens) minute (min) a unit for measuring time 1 minute = 60 seconds minute hand the longer hand on the clock that tells the minutes perimeter the distance around a figure pint (pt) a unit for measuring liquid 1 pint = 2 cups quart (qt) a unit for measuring liquid 1 quart = 4 cups ruler a tool used to measure length square unit unit for measuring area yard (yd) a unit for measuring length or distance 1 yard = 3 feet = 36 inches yardstick a tool used to measure length thermometer a tool for measuring temperature length how long something is width how wide something is increase when the temperature rises or goes up on the thermometer hour hand the shorter hand on the clock that tells the hour drop when the temperature on a thermometer decreases or goes down denominator in a fraction, the number that stands for how many equal parts a whole is divided into equivalent having the same value fraction a number that stands for part of a whole or part of a group numerator in a fraction, the number that stands for how many parts of a whole or group are included set a group of items that have something in common angle two rays with a common end point circle a plane shape, not a polygon, that is closed with all of the points an equal distance from the center congruent figures that have the same size and same shape corner (vertex) where two edges or sides come together on a space or plane shape base a flat side of a cylinder or cone cone a space shape with one circular face and one vertex cube a space shape with all faces being congruent squares edges the place in which two faces on a space figure meet faces the flat side of a space figure hexagon a polygon with 6 sides line of symmetry a line that can be drawn on an object that cuts the object into two congruent halves octagon a polygon with 8 sides parallelogram a polygon with 2 sets of parallel sides pentagon a polygon with 5 sides plane shape a shape that is flat on a flat surface - it is two dimensional polygon a closed plane shape with three or more straight sides pyramid a space figure whose base is a plane figure and whose faces are triangles with one common corner prism a solid that is formed by the union of all the line segments that connect corresponding points on two congruent polygons that are located in parallel lines quadrilateral a plane figure with four sides and four corners rectangle a plane figure with four right angles and four sides rectangular prism a space figure whose faces are all rectangles rhombus a parallelogram with all four sides being equal sides the sides of a plane shape solid figures a geometric figures whose points are in more than one plane sphere a sold shape with a curved surface square a rectangle with four equal sides and four right angles symmetry a plane figure has symmetry if it can be folded along a line so that the two parts match exactly trapezoid a polygon with 4 sides in which two of the sides are parallel triangle a plane figure with three sides and three corners probability tells the chance that something will happen survey you ask a lot of people the same question data the answers you get to the same question you asked a lot of people - you organize it and study the answers tally marks one simple way to keep track of information you have collected bar graph a bar graph can show how data compare - vertical and horizontal bar graphs pictograph uses pictures or symbols to show data event something that may or may not happen predictions when you know the probability of an event, you can use the probability to make a prediction certain some events are certain and you KNOW they must happen impossible some events are impossible and you know that they can never happen equally likely outcomes that have the same chance of occuring less likely smaller chance that an event will happen more likely greater chance that an event will happen length how long something is width how wide something is increase when the temperature rises or goes up on the thermometer hour hand the shorter hand on the clock that tells the hour drop when the temperature on a thermometer decreases or goes down denominator in a fraction, the number that stands for how many equal parts a whole is divided into equivalent having the same value fraction a number that stands for part of a whole or part of a group numerator in a fraction, the number that stands for how many parts of a whole or group are included set a group of items that have something in common angle two rays with a common end point circle a plane shape, not a polygon, that is closed with all of the points an equal distance from the center congruent figures that have the same size and same shape corner (vertex) where two edges or sides come together on a space or plane shape base a flat side of a cylinder or cone sum the answer to an addition problem difference the answer to a subtraction problem Addend The numbers in an addition problem. Addition put together two or more values Digit Numbers from 0 to 9 Estimate An approximate rather than an exact answer. Fact family A set of related number sentences Missing addend A number missing in the number sentence Regroup To rename a number Subtraction take away; compare two values; or find the missing part Zero property of addition A number added to zero will have the sum of that number Zero property of subtrction Zero subtracted from any number will have the difference of that number Even A number that can be divided into two equal groups Expanded Notation A number written by its place value Greater than > The symbol used to compare two numbers when the larger number is on the left Less < The symbol used to compare two numbers when the smaller number is on the left Ordinal numbers A number that tells the position or order Place Value The value of a digit based on its position in a number Rounding Expressing a number to the nearest ten, hundred, or thousand Standard form A number written with one digit for each place value