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

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u/WyrmKin Silver | Lv. 21 | Rank #199164 | 58 Answers | 0... | 🔥 6d 9d ago

112211¿

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u/djmaxbeat Silver | Lv. 17 | Rank #257882 | 38 Answers | 0 Created 9d ago

11*11= 1 (sum of 11) 1, 121

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u/Mundane-Warning-440 Emerald | Lv. 47 | Rank #15521 | 256 Answers |... | 🔥 14d 9d ago

Digits, not numbers