Question

Baby anna wants to arrange 12 blocks in a row. how many different arrangements can she make

Answer 1

You multiply 12 by 12.  This will give you 144.  Baby Anna can arrange them in 144 different arrangements.

Answer 2

Baby anna wants to arrange 12 blocks in a row

12 blocks are arranged in a row having 12 places

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12 blocks can be used in first place. 11 blocks can be used in second place.

10 blocks can be used in third place and so on

12, 11, 10, 9, 8, 7, 6, 5, 4 ,3, 2, 1

12 * 11 * 10 * 9 * 8 * 7 * 6 * 5 * 4 * 3 * 2 * 1 can be written as 12!

12! = 12 * 11 * 10 * 9 * 8 * 7 * 6 * 5 * 4 * 3 * 2 * 1 = 479,001,600

She can make 479,001,600 different arrangements.