“But 9 + 10 Equals 19 / I Know But He Says 21 and it's Hilarious”, the common meme card
But 9 + 10 Equals 19 / I Know But He Says 21 and it's Hilarious is one of the meme cards you collect in MyMemeCards, the meme card game. “But 9 + 10 Equals 19 / I Know But He Says 21 and it's Hilarious” is a a common card of the Memes World series 61, number 18258 of the collection.
- Number
- No. 18258
- Rarity
- Common
- Collection
- Memes World series 61
- Meme since
- 2020
- Type
- Catchphrase
- Fame
- 49/100
- Recycle value
- 5 MemeCoins (15 in Shiny)
- Meme page views
- 3,258
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Where the “But 9 + 10 Equals 19 / I Know But He Says 21 and it's Hilarious” meme comes from
A political comic from 2016 got repurposed in April 2020: one character confused about 9 + 10 = 19, the other explaining the joke (it's the 9 + 10 = 21 meme). Blew up hard in 2025, pure absurdist humor.
On the card: Know Your Meme files it as catchphrase, it spread from 2020, its meme page counts 3,258 views.
How to get the “But 9 + 10 Equals 19 / I Know But He Says 21 and it's Hilarious” meme card
Every pack holds 5 meme cards, the first 3 of them Common; But 9 + 10 Equals 19 / I Know But He Says 21 and it's Hilarious comes out of the Memes World series 61 as a common card. The pack odds say what each rarity is worth opening.
Your first pack is free and needs no account. After that you sign in with Google and a new free pack lands every 10 minutes, up to 3 waiting for you. You can also buy the card with MemeCoins on the market, bid for it at auction, or trade it with another collector — and a card you keep in double recycles into 5 MemeCoins.
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Frequently asked questions
How do I get the But 9 + 10 Equals 19 / I Know But He Says 21 and it's Hilarious meme card?
Open a pack of MyMemeCards: “But 9 + 10 Equals 19 / I Know But He Says 21 and it's Hilarious” is a common card of the Memes World series 61. Your first pack is free, with no account, and you can also buy, trade or win the card at auction.
How rare is the But 9 + 10 Equals 19 / I Know But He Says 21 and it's Hilarious card?
It is a Common card. Rarity decides which pack slot can deal it, and what it is worth on the market.
What is the But 9 + 10 Equals 19 / I Know But He Says 21 and it's Hilarious card worth?
Recycling it gives 5 MemeCoins, three times that for a Shiny printing. Its market price is set by the collectors' own listings and auctions.
Is MyMemeCards free?
Yes. Opening packs and collecting meme cards costs nothing: a free pack every 10 minutes, up to 3 in reserve.
Want But 9 + 10 Equals 19 / I Know But He Says 21 and it's Hilarious in your meme card collection?