Coding Decoding Worksheet
How to think it through (Letter by letter): Write the word above its code and compare each pair of letters. Find the rule: the same move (+1, −2 …), opposite letters (A ↔ Z, B ↔ Y), or the word reversed. Apply the same rule to the new word. After Z comes A again.
NameDateTime takenScore ___ / 40
- 1.If SUN is written as OVT, how is BOAT written in the same code? (a) CPBU (b) SZNA (c) TAOB (d) UBPC
- 2.If TREE is written as EERT, how is BOAT written in the same code? (a) CPBU (b) TAOB (c) SZNA (d) UBPC
- 3.If BALL is written as CBMM, how is WIND written in the same code? (a) XJOE (b) VHMC (c) YKPF (d) EOJX
- 4.If DOG is written as FNC, how is STAR written in the same code? (a) SBUT (b) RSZQ (c) RATS (d) QZSR
- 5.If PARK is written as QBSL, how is FISH written in the same code? (a) EHRG (b) HKUJ (c) ITJG (d) GJTI
- 6.If DOG is written as WLT, how is BALL written in the same code? (a) XYNN (b) ZAPP (c) CBMM (d) YZOO
- 7.If GOLD is written as DLOG, how is BELL written in the same code? (a) KKDA (b) MMFC (c) CFMM (d) LLEB
- 8.If MILK is written as PLON, how is CAT written in the same code? (a) ECV (b) GEX (c) ZXQ (d) FDW
- 9.If STAR is written as TCVU, how is FROG written in the same code? (a) HTQI (b) EMPD (c) GORF (d) IQTH
- 10.If MILK is written as LHKJ, how is COLD written in the same code? (a) DPME (b) BNKC (c) AMJB (d) COLD
- 11.If CAT is written as UBD, how is DOG written in the same code? (a) HPE (b) GOD (c) FNC (d) EPH
- 12.If BOOK is written as CPPL, how is MILK written in the same code? (a) LMJN (b) LHKJ (c) NJML (d) OKNM
- 13.If BALL is written as NNCD, how is FISH written in the same code? (a) JUKH (b) FQGD (c) HKUJ (d) HSIF
- 14.If LION is written as ORLM, how is FISH written in the same code? (a) VSIT (b) GJTI (c) TQGR (d) URHS
- 15.If CAT is written as XZG, how is LAMP written in the same code? (a) MBNQ (b) NYMJ (c) PAOL (d) OZNK
- 16.If NEST is written as MVHG, how is BELL written in the same code? (a) YVOO (b) XUNN (c) CFMM (d) ZWPP
- 17.If CAKE is written as GMCE, how is BOOK written in the same code? (a) KOOB (b) DQQM (c) IMMZ (d) MQQD
- 18.If TOYS is written as GLBH, how is HAND written in the same code? (a) RYLV (b) TANX (c) IBOE (d) SZMW
- 19.If CAT is written as UBD, how is GOLD written in the same code? (a) EMPH (b) HPME (c) DLOG (d) CKNF
- 20.If HAND is written as EOBI, how is MILK written in the same code? (a) JKHL (b) KLIM (c) LMJN (d) NJML
- 21.If CAT is written as TAC, how is BOAT written in the same code? (a) CPBU (b) UBPC (c) TAOB (d) SZNA
- 22.If PARK is written as OZQJ, how is BOAT written in the same code? (a) BOAT (b) ANZS (c) ZMYR (d) CPBU
- 23.If TOYS is written as TZPU, how is DESK written in the same code? (a) KSED (b) EFTL (c) JRDC (d) LTFE
- 24.If RAIN is written as NIAR, how is PEN written in the same code? (a) MDO (b) QFO (c) NEP (d) OFQ
- 25.If DOG is written as HPE, how is DESK written in the same code? (a) KSED (b) JRDC (c) EFTL (d) LTFE
- 26.If SUN is written as RTM, how is PEN written in the same code? (a) QFO (b) PEN (c) NCL (d) ODM
- 27.If TOYS is written as SYOT, how is PEN written in the same code? (a) MDO (b) NEP (c) OFQ (d) QFO
- 28.If LION is written as JGML, how is MILK written in the same code? (a) JFIH (b) OKNM (c) KGJI (d) LHKJ
- 29.If PEN is written as QFO, how is LION written in the same code? (a) MJPO (b) NKQP (c) OPJM (d) KHNM
- 30.If STAR is written as RATS, how is LION written in the same code? (a) NOIL (b) MJPO (c) OPJM (d) MNHK
- 31.If GOLD is written as EMJB, how is COLD written in the same code? (a) EQNF (b) BNKC (c) ZLIA (d) AMJB
- 32.If WIND is written as XJOE, how is SUN written in the same code? (a) OVT (b) RTM (c) TVO (d) UWP
- 33.If WIND is written as DRMW, how is MILK written in the same code? (a) MQNO (b) NROP (c) NJML (d) OSPQ
- 34.If DRUM is written as NVSE, how is PARK written in the same code? (a) KRAP (b) JQZO (c) QBSL (d) LSBQ
- 35.If LAMP is written as KZLO, how is MOON written in the same code? (a) MOON (b) NPPO (c) KMML (d) LNNM
- 36.If FROG is written as UILT, how is MOON written in the same code? (a) OMMN (b) MKKL (c) NLLM (d) NPPO
- 37.If JUMP is written as QFNK, how is PEN written in the same code? (a) JUL (b) QFO (c) LWN (d) KVM
- 38.If MOON is written as PQQO, how is BOOK written in the same code? (a) IMMZ (b) KOOB (c) DQQM (d) MQQD
- 39.If BALL is written as YZOO, how is GOLD written in the same code? (a) UMPX (b) HPME (c) SKNV (d) TLOW
- 40.If COLD is written as EMPD, how is MILK written in the same code? (a) JKHL (b) LMJN (c) KLIM (d) NJML
Answer key
- UBPC
- TAOB
- XJOE
- QZSR
- GJTI
- YZOO
- LLEB
- FDW
- IQTH
- BNKC
- HPE
- NJML
- JUKH
- URHS
- OZNK
- YVOO
- MQQD
- SZMW
- EMPH
- LMJN
- TAOB
- ANZS
- LTFE
- NEP
- LTFE
- ODM
- NEP
- KGJI
- MJPO
- NOIL
- AMJB
- TVO
- NROP
- LSBQ
- LNNM
- NLLM
- KVM
- MQQD
- TLOW
- LMJN
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