STAAR Math Review

Front

What is expanded notation?

Back

Expanded notation is a way of writing numbers that shows the value of each digit. For example, the number 8,703.21 can be written as (8 x 1,000) + (7 x 100) + (3 x 10) + (2 x 0.1) + (1 x 0.01).

Front

What does the term 'product' mean in math?

Back

The product is the result of multiplying two or more numbers together. For example, the product of 5 and 4 is 20.

Front

How do you convert a number from expanded notation to standard form?

Back

To convert from expanded notation to standard form, add the values of each part together. For example, (8 x 1,000) + (7 x 100) + (3 x 10) + (2 x 0.1) + (1 x 0.01) equals 8,703.21.

Front

What is a stem-and-leaf plot?

Back

A stem-and-leaf plot is a way to display data that helps to visualize the distribution of the data. Each number is split into a 'stem' (the leading digit) and a 'leaf' (the trailing digit).

Front

What is the rule for multiplying by 10?

Back

When you multiply a number by 10, you move the decimal point one place to the right. For example, 5 x 10 = 50.

Front

What does it mean to find a number that is 'more than' another number?

Back

To find a number that is 'more than' another number, you add a specific amount to that number. For example, 150 more than 4,892 is 4,892 + 150 = 5,042.

Front

How do you find the total amount spent over several weeks?

Back

To find the total amount spent, add all the individual amounts together. For example, if a florist spent $32, $38, and $40 over three weeks, the total is $32 + $38 + $40 = $110.

Front

What is the purpose of a data plot?

Back

A data plot visually represents data to help identify patterns, trends, or outliers in the information.

Front

What is the difference between standard form and expanded notation?

Back

Standard form is the usual way of writing numbers (e.g., 8,703.21), while expanded notation breaks the number down into its individual place values (e.g., (8 x 1,000) + (7 x 100) + (3 x 10) + (2 x 0.1) + (1 x 0.01)).

Front

How do you determine the missing number in a data set?

Back

To determine the missing number in a data set, compare the data to see which number is not represented. For example, if the data is 32, 38, 40, 44, 46, 49, 53, 55, 58, 62, 65, 68, 70, 72, 81, and 44 is missing, it can be identified by checking the list.