December 2009
22 posts
“Never memorize something that you can look up.”
– Albert Einstein (via lickystickypickyme) (via proofmathisbeautiful)
Multiplication Palindromes
proofmathisbeautiful:
lickystickypickyme:
12 × 42 = 24 × 21 12 × 63 = 36 × 21 12 × 84 = 48 × 21 13 × 62 = 26 × 31 23 × 96 = 69 × 32 24 × 63 = 36 × 42 24 × 84 = 48 × 42 26 × 93 = 39 × 62 36 × 84 = 48 × 63 46 × 96 = 69 × 64 14 × 82 = 28 × 41 23 × 64 = 46 × 32 34 × 86 = 68 × 43 13 × 93 = 39 × 31
