A rough estimate to help you solve a problem or check an answer.
You use a ballpark estimate to check the reasonableness of your answer. It helps you answer the questions "Does my answer make sense?"
a graph that uses horizontal or vertical bars to display data
natural number, any positive integer
7, 59, 1,204 are examples of counting numbers
Any one of the ten symbols 0, 1, 2, 3, 4, 5, 6, 7, 8, or 9 used to write numbers
different ways of naming the same number
example: 3 + 7, 100 - 90, 10 x 10 are all equivalent names for 10
to find an answer that is close to the exact answer
a sketch of data in which check marks, Xs, or other symbols above a labeled line show the frequency of each value.
The largest amount; the greatest number in a set of data.
The middle number in a data set 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.
the smallest number in a set of data
The value or values that occurs most often in a set of data.
the difference between the maximum and and minimum in a set of data.
A chart that uses marks, called tally marks, to show how many times each value appears in a set of data.