# Question Video: Writing Given Sets with the Descriptive Method Using the Listing Method Mathematics

𝑌 is the set of digits in the number 90,590. Write 𝑌 using the listing method.

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### Video Transcript

𝑌 is the set of digits in the number 90,590. Write 𝑌 using the listing method.

Well, the first thing we need to do in this question, to enable us to write 𝑌 using the listing method, is identify the digits within our number. Well, first of all, we can see that the digit nine appears twice. Then we have the digit zero, which also appears twice, and finally the digit five. Now, when we’re gonna list these digits, so we’re gonna list the set of digits, which is 𝑌, we only need to list each digit once. So therefore, the set 𝑌 would equal nine, five, and zero. And it’s worth noting here that a common mistake would be to list all of the digits that we have, for instance, two nines, two zeros, and a five. So, It’s also worth noting that it doesn’t matter which order we put them in. I’ve just put them here in descending order.