# mathematics vocabulary from unit 2

## Terms

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what are counting numbers?
counting numbers are the numbers used to count things. The set of counting numbers are 1,2,3,4,5 and so on.
What is whole numbers?
Whole numbers are any of the numbers 0,1,2,3,4,5 and so on. Include all the counting numbers and zero.
what is a digit?
Digit is one of the number symbols 0,1,2,3,4,5,6,7,8,9.
What is place value?
Place value is a system that values a digit according to its position in a number. I our number system, each pllace has a value that is ten times that of the place to its right and one thenth the value of the place to its left. for example the number 456, the 4 is in the hundreds place and has a value of 400.
What is place?
It is the position of a digit in a number, for example in 456, 4 is in the hundreds place.
What is estimate?
Estimate is an answer that is close to an exact answer. Also, to calculate an answer that is close to the exact answer.
What is tally chart?
A tally chart is a method of organizing data to make it easier to understand.
IIII III
five three
There are 8. The tally charts reads 8.
What is a landmark?
A notable feature of a data set. Landmarks include median, mode maximum, minimum and range.
What is data set?
Data set is a group of information that is gathered by counting, measuring, asking questions, or observing.
What is maximum?
Maximum is the largest ammount; the greatest number in a set of data.
What is esstimate?
What is minimum?
MInimum is the smallest ammount; the smallest number in a set of data.
What is range?
Range is the difference between maximum and minimum in a set of data.
What is mode?
Mode is the value or values that occur most often in a set of data.
What is line plot?
Line plot is a sketch of data in which check marks, Xs, or other marks above a labeled line show the frequency of each value.
What is median?
Median is the middle value in a set of data when the data are listed in order from smallest to largest. If there is an even number of data points, the median is the mean of the two middle values.

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