Crack the Code

I forgot Grandma’s garage opener code. How many different and unique codes(permutations) are there if the code was 2 digits, 3 digits or 4 digits? How could I find out?

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Math Wonders:
Have you ever wondered why a lock is called a combination lock? It really should be a permutation lock!

See in Mathematics we use more precise language:When the order doesn’t matter, it is a Combination. When the order does matter it is a Permutation.

Now Combination Pizza is the right way to use it because it does not matter if you order a ham & pineapple pizza or a pineapple  & ham pizza- it will taste the same.

Let’s have a math chat! Leave me a response to this math happening.

What do you wonder about?

What do you know or notice?

What information do you need?

What assumptions can you make?

What math will you use to solve the problem?

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