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New posts in cryptarithm
Christmas Cryptarithm: "HERES+MERRY+XMAS=READER"
algebra-precalculus
puzzle
alternative-proof
decimal-expansion
cryptarithm
Solving $DEF+FEF=GHH$, $KLM+KLM=NKL$, $ABC+ABC+ABC=BBB$
algebra-precalculus
elementary-number-theory
arithmetic
cryptarithm
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