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### Unit 1 Vocabulary

TermDefinition
Number grid A table with rows and columns that lists numbers in order. A monthly calendar is a number grid.
Tally charts A chart that uses marks, called tally marks, to show how many times each value appears in a set of data.
Line plot A sketch of data that uses X's, checks, or other marks above a number line to show how many times each value appears in the set of data.
Bar graph A graph that uses horizontal or vertical bars to represent data.
Minimum The smallest amount. The smallest number in a set of data.
Maximum The largest amount. The largest number in a set of data.
Range The difference between the largest (maximum) and the smallest (minimum) numbers in a set of data.
Mode The number of value that occurs most often in a set of data.
Median The middle number in a set of data when the numbers are put in order from smallest to largest, or largest to smallest. The median is also known as the middle number or middle value.
Equivalent Different ways to name the same number.
Decimal A number such as 23.4, that contains a decimal point. Money amounts such as \$6.38 are decimal numbers. The decimal point in money separates the dollars from the cents.
Decimal point A dot used to separate the ones place from the tenths place in decimal numbers.
Estimate An answer that should be close to an exact answer. To estimate means to give an answer that should be close to an exact answer.
Created by: pav1nc