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When building applications with mongodb, you will most likely also work with some numbers.

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Maybe you're building an online shop where you store products, that obviously will have prices and where

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you store orders which wIll have order volume or prices or whether you're building a database for

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scientific data with which you or other people might run scientific calculations.

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Numbers are everywhere

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and of course you can store the numbers in mongodb too and so far throughout this course, we heavily worked with

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numbers already.

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Now actually, working with numbers can be more complex than you might think or there is more to it than

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you might think

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and therefore in this module, we'll dive into the different number types mongodb supports, how they differ

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and when you might use which.