Help please. Word problems.

Alex has 15 friends. She has 36 chocolate cookies. She wants each friends to have 3 chocolate cookies. how many more cookies does she need?

15 * 3 = 45

45 - 36 = ?

thanks!

how did you go about translating?

What do you want to translate?

how did you know it was multiplicaton instead of division or addition

You could add.

First friend = 3 cookies
Second friend = 3 cookies
Third friend = 3 cookies
Fourth friend = 3 cookies

and so on

But it's certainly quicker to multiply the number of friends by the number of cookies each should get.

great thanks!

You're welcome.

To find out how many more cookies Alex needs, we need to determine the total number of chocolate cookies required for all her friends first.

Since Alex has 15 friends and she wants each friend to have 3 chocolate cookies, we can multiply the number of friends by the number of cookies each friend should receive. Therefore, the total number of chocolate cookies required is:

15 friends * 3 cookies/friend = 45 cookies

Now, to find out how many more cookies Alex needs, we subtract the number of cookies she already has from the total number of cookies she requires. In this case:

Number of cookies required - Number of cookies already had = Number of more cookies she needs
45 cookies - 36 cookies = 9 more cookies

Therefore, Alex needs 9 more chocolate cookies for each friend to have 3 cookies each.