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# 2. Even and Odd

A number is even if it can be divided by $$2.$$ Even numbers end in $$0,2,4,6,$$ or $$8.$$

A number is odd if it cannot be divided by $$2.$$ Odd numbers have remainder $$1$$ when divded by $$2.$$ They end in $$1,3,5,7,$$ or $$9.$$

Example: Is $$13$$ even or odd?

$$13$$ ends in a $$3,$$ so it is odd.

Example: Is $$18$$ even or odd?

$$18$$ ends in an $$8,$$ so it is even.

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