Deshawn is serving ice cream with the birthday cake at his party. he has purchased 19 1/2 pints of ice cream. he will serve 3/4 of a pint to each guest.

a. how many guests can be served ice cream?

b. will there be any ice cream left? justify your answer.

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This law is sometimes called the grouping property. as you can see, regardless of how the numbers are grouped, the answer is still 13. the associative law of multiplication is similar to the same law for addition. it says that no matter how you group numbers you are multiplying together, you will get the same answer.