Mammoth Memory

Less than or greater than equations

We already know

Less than is `<`     greater than is `>`

But a logical step forward is:

A less than or greater than equal to symbol has the symbols we have just learned with an underscore underneath


Example 1


The line underneath the greater than symbol means "or equal to", so this means D is greater than or equal to 34.


Example 2


This means B is less than or equal to 20.

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