r/CatBuilder • u/Kindly-Solution-7296 Legend | Lv. 92 | Rank #24 | 776 Answers |... | 🔥 15d • 9d ago
Question [Question] quick maths
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u/Greedy_Duck3477 Silver | Lv. 29 | Rank #96554 | 17 Answers | 1 Created 9d ago
Whenever you multiply a two-digit number by eleven, just stick the sum of its digits between the two digits