From https://arxiv.org/abs/2305.18945
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nostr:npub173zugfcw5qemam49j598gfhr5nyctxun4mt3y8qf4ayj4pdnt7gq2gafem - I will henceforth write 1+1 as 2, 3+1 and 2+2 as 4, etc. Then my kid can learn their addition tables much more rapidly.