3rd Grade STAAR Math Review

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What is expanded notation?

Back

Expanded notation is a way to write numbers that shows the value of each digit. For example, the number 51,073 can be written as (5 x 10,000) + (1 x 1,000) + (7 x 10) + (3 x 1).

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How do you find the number of items in each group?

Back

To find the number of items in each group, you can use multiplication. For example, if there are 36 motorcycles in 6 rows, you can use the equation 6 x ? = 36.

Front

What is standard form?

Back

Standard form is the way of writing numbers using digits. For example, the number 80,490 is in standard form.

Front

How do you estimate a number?

Back

To estimate a number, round it to the nearest ten, hundred, or thousand. For example, 641 can be estimated to 600.

Front

What is the equation for multiplication?

Back

An equation for multiplication shows how many groups of a number there are. For example, 6 x 6 = 36 means there are 6 groups of 6.

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What does 'sum' mean in math?

Back

The 'sum' is the result of adding two or more numbers together.

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What is a ten thousand?

Back

A ten thousand is the number 10,000. It is a place value in the number system.

Front

What is a hundred?

Back

A hundred is the number 100. It is a place value in the number system.

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What is a ten?

Back

A ten is the number 10. It is a place value in the number system.

Front

How do you write a number in expanded form?

Back

To write a number in expanded form, break it down into the value of each digit. For example, 51,073 = (5 x 10,000) + (1 x 1,000) + (7 x 10) + (3 x 1).