Add/Subtract Decimals & Representations

Front

What is a decimal?

Back

A decimal is a fraction expressed in a special form, where the denominator is a power of ten, typically represented with a decimal point.

Front

How do you add decimals?

Back

To add decimals, align the numbers by the decimal point and add as you would whole numbers, placing the decimal point in the sum directly below the other decimal points.

Front

How do you subtract decimals?

Back

To subtract decimals, align the numbers by the decimal point and subtract as you would whole numbers, placing the decimal point in the difference directly below the other decimal points.

Front

What is a stem-and-leaf plot?

Back

A stem-and-leaf plot is a method of displaying quantitative data in a graphical format, similar to a histogram, that helps to visualize the distribution of the data.

Front

What does it mean to represent data?

Back

To represent data means to display it in a way that makes it easier to understand, analyze, and interpret, such as through charts, graphs, or tables.

Front

How do you find the highest value in a data set?

Back

To find the highest value in a data set, compare all the values and identify the largest one.

Front

What is the significance of the number of students in survey questions?

Back

The number of students in survey questions indicates the sample size, which can affect the reliability and validity of the survey results.

Front

How do you calculate the total weight of items bought?

Back

To calculate the total weight of items bought, add the weights of each individual item together.

Front

What is the difference between two scores?

Back

The difference between two scores is found by subtracting the lower score from the higher score.

Front

What is a representation of data in a survey?

Back

A representation of data in a survey can include numerical values, percentages, or visual formats like graphs that summarize the responses.