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### 12 Cards in this Set

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 difference subtract two numbers estimate Use information you know to draw a conclusion about a number expanded notation Break a number into its parts. For example, 375 = 300+70+5. maximum The largest number in a set of data. Mean The average of a set of data. To get the mean, you must add all the data then divide by the total number of data points you used. Median The middle number in a set of data. Minimum The smallest number in a set of data. Mode The data point that occurs the most in the data set. Number sentence A mathematical expression such as 5>3, 5+6=11, or 25/5=5. Open number sentence A number sentence that is missing a part. For example, n +6= 11. Range To find the range in a data set, you must know the maximum then subtract the minimum (maximum - minimum=range). Variable A letter used to represent a value in a number sentence. For example, in n+6=11, n is the variable.