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a device for measuring time by moving hands around a circle for showing hours, minutes, and sometimes seconds
a known number of things that helps you understand the size or amount of a different number of things
the sum of the frequency of data as they are collected, a running total of items being counted
the process of sharing a number of items to find how many groups can be made or how many items will be in a group; the opposite operation of multiplication
a part of a number sentence that has numbers and operation signs but does not have an equal sign
a line with equally spaced tick marks named by numbers (a number line does not always start at 0)
what a figure has if it can be folded about a line so that its two parts match exactly
a plane figure with opposite sides that are equal and parallel, and with four right angles
a round object whose curved surface is the same distance from the center to all of its points
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