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In this video, Mahalo math expert Allison Moffett asks how to write a whole number in expanded form using powers of 10.

Quiz Question
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Given the whole number 4,785 write this number in expanded form using powers of 10.

Solution
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First, write the number in expanded form:

4x1000 + 7x100 + 8x10 + 5x1.

Now, rewrite this expanded form in powers of 10:

4x(10 to the power of 3) + 7x(10 to the power of 2) + 8x(10 to the power of 1) + 5x(10 to the power of 0).

Remember: use powers of 10 in every position.

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