Standard Form

You can use WolframAlpha to write numbers in Standard Form:

Enter your chosen number in the input box and Submit.

Select the image for the WolframAlpha query

Or enter a number in standard form to return the decimal equivalent.

Select the image for the WolframAlpha query

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This calculator from Subtangent allows you to convert from normal form to standard form and vice versa. You will need to create an account with STEM Learning (free) to access the calculator.

Standard Form Calculator – Subtangent

Calculators & Tools – Menu.