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| a set of step-by-step instructions for doing something, such as carrying out a computation or solving a problem. |
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| Our number system in which each place in a number has a value 10 times the place to its right and 1/10 the place to the left. |
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| a method for adding numbers in which the addends' digits are first added in each place-value column separately, and then 10-for-1 trades are made until each column has only one digit. Lines are drawn to separate the columns. |
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| different names for the same number. for example 2 + 6, 4 + 4, 12 - 4, eight, and VIII are equivalent names for 8. |
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| a sketch of data in which check marks, X's, or other marks above a labeled line show the frequency of each value. |
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| the sum of a set of numbers divided by the number of numbers in the set. The mean is often referred to as the "average". |
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| the middle value in a set of data when the data are listed in order from least to greatest. If there is an even number of data points, the median is the mean of the two middle values. |
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| the value or values the occur the most often in a set of data. |
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| a diagram that is used for writing equivalent names for a number. |
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| the difference between the maximum and the minimum in a set of data. |
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| the numbers 0, 1, 2, 3, 4, and so on. |
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