# Second Grade Math Vocabulary Flashcards

Terms Definitions
 15+15 30 math 1+2=3 11 + 9 20 plane figure any 2-dimensional figure perimeter The distance around a figure consecutive following one another without interruption teaspoon (tsp) a customary unit of capacity output The end result of a function. millimeter (mm) a metric unit of length approximately nearly exact; not perfectly accurate or correct benchmark A point of reference from which measurements can be made. isometric dot paper Used to draw space figures trapezoid a quadrilateral with 1 pair of parallel sides and 1 pair of sides that are not parallel percent a ratio that represents parts per hundred. polygon plane shape with three or more straight sides metric system A decimal system of weights and measurements based on the meter as its units of length, the kilogram as its unit of mass and the liter as its unit of capacity. TREND A clear direction in a graph that suggests the future. pyramid A solid pointed figure with a flat base that is a polygon pentagon a polygon with 5 sides and 5 vertices Octagon A polygon with eight sides and eight angles coordinate plane graph with two axes and four quadrants numerator The number above the bar in a fraction. It tells the number of equal parts being considered. period a group of 3 digits in a number separated by a comma from the other digits box plot A diagram, constructed from a set of numerical data, that shows a box indicating the middle 50% of the ranked statistics, as well as the maximum, minimum and medium statistics. divisibility Rules that are used to find if a number is divisible by numbers such as 2, 3, 4, 5 ,6, 9, or 10. Number must be capable of being divided with a remainder of zero. circle A closed figure in a plane having all points the same distance from a given point the center POSITIVE RELATIONSHIP Trend of a scatterplot is up to the right. Regular Polygon A polygon that has sides that are the same length COMPOSITE NUMBER a whole number greater than 1 that has more than two factors Zero Property of Multiplication the product of any number and 0 is 0.
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