The Expansion Machine: Standard Form to Expanded Form

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Exploration

GR. 4-5

Skill:

Read, write, and compare whole numbers from 10,000 to less than one million using standard and expanded notation.

The Expansion Machine: Standard Form to Expanded Form

Explore the meaning of digits by converting a number from standard form to expanded form one place value at a time.

Putting It All Together

Answer these open ended questions on your own or with others to form deeper math connections.

Open-ended question

A student in your class was asked to write a number in expanded form. He wrote: . What number was he trying to expand? What is the correct expanded form?

Text and math input