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 MOON is written as MNNL, how is FISH written in the same code? (a) ITJG (b) HSIF (c) GRHE (d) EHRG
- 2.If BELL is written as LLEB, how is RAIN written in the same code? (a) OJBS (b) SBJO (c) NIAR (d) MHZQ
- 3.If FROG is written as UILT, how is DOG written in the same code? (a) VKS (b) EPH (c) XMU (d) WLT
- 4.If COLD is written as DLOC, how is FROG written in the same code? (a) FNQE (b) GORF (c) HPSG (d) GSPH
- 5.If JUMP is written as PMUJ, how is SUN written in the same code? (a) MTR (b) OVT (c) NUS (d) TVO
- 6.If LION is written as NOIL, how is RAIN written in the same code? (a) OJBS (b) SBJO (c) NIAR (d) MHZQ
- 7.If PEN is written as MDO, how is TREE written in the same code? (a) FFSU (b) SQDD (c) EERT (d) DDQS
- 8.If BOOK is written as YLLP, how is GOLD written in the same code? (a) HPME (b) TLOW (c) UMPX (d) SKNV
- 9.If GOLD is written as JROG, how is STAR written in the same code? (a) UVCT (b) WXEV (c) VWDU (d) PQXO
- 10.If DESK is written as WVHP, how is DRUM written in the same code? (a) ESVN (b) XJGO (c) WIFN (d) VHEM
- 11.If DOG is written as BME, how is TOYS written in the same code? (a) RMWQ (b) SNXR (c) QLVP (d) VQAU
- 12.If TREE is written as GGTV, how is DRUM written in the same code? (a) MURD (b) FTWO (c) KSPB (d) OWTF
- 13.If JUMP is written as PMUJ, how is STAR written in the same code? (a) SBUT (b) RATS (c) QZSR (d) TUBS
- 14.If TOYS is written as RXNS, how is PEN written in the same code? (a) OFQ (b) ODM (c) NEP (d) MDO
- 15.If CAKE is written as EKAC, how is DRUM written in the same code? (a) MURD (b) ESVN (c) NVSE (d) LTQC
- 16.If WIND is written as XJOE, how is BALL written in the same code? (a) DCNN (b) CBMM (c) AZKK (d) MMBC
- 17.If BELL is written as LLEB, how is BALL written in the same code? (a) KKZA (b) CBMM (c) LLAB (d) MMBC
- 18.If CAKE is written as XZPV, how is MILK written in the same code? (a) NROP (b) OSPQ (c) MQNO (d) NJML
- 19.If PEN is written as NCL, how is BOAT written in the same code? (a) ANZS (b) DQCV (c) YLXQ (d) ZMYR
- 20.If COLD is written as EMPD, how is DRUM written in the same code? (a) NVSE (b) LTQC (c) MURD (d) ESVN
- 21.If STAR is written as HGZI, how is PEN written in the same code? (a) QFO (b) JUL (c) KVM (d) LWN
- 22.If HAND is written as DNAH, how is PEN written in the same code? (a) NEP (b) QFO (c) OFQ (d) MDO
- 23.If FROG is written as UILT, how is BELL written in the same code? (a) ZWPP (b) CFMM (c) XUNN (d) YVOO
- 24.If DESK is written as JRDC, how is DOG written in the same code? (a) FNC (b) CNF (c) GOD (d) HPE
- 25.If MOON is written as OPPN, how is GOLD written in the same code? (a) DLOG (b) CKNF (c) EMPH (d) HPME
- 26.If TREE is written as EERT, how is TOYS written in the same code? (a) RXNS (b) UPZT (c) TZPU (d) SYOT
- 27.If FROG is written as FNQE, how is DESK written in the same code? (a) JRDC (b) KSED (c) CDRJ (d) LTFE
- 28.If STAR is written as HGZI, how is MILK written in the same code? (a) NJML (b) MQNO (c) NROP (d) OSPQ
- 29.If TREE is written as DDQS, how is SHIP written in the same code? (a) OHGR (b) PIHS (c) QJIT (d) RGHO
- 30.If BELL is written as LLEB, how is WIND written in the same code? (a) EOJX (b) DNIW (c) XJOE (d) CMHV
- 31.If WIND is written as DNIW, how is SUN written in the same code? (a) NUS (b) OVT (c) MTR (d) TVO
- 32.If CAKE is written as BZJD, how is COLD written in the same code? (a) COLD (b) DPME (c) BNKC (d) AMJB
- 33.If SHIP is written as HSRK, how is GOLD written in the same code? (a) TLOW (b) UMPX (c) HPME (d) SKNV
- 34.If CAT is written as ECV, how is BOOK written in the same code? (a) CPPL (b) ERRN (c) DQQM (d) ZMMI
- 35.If PARK is written as OZQJ, how is COLD written in the same code? (a) BNKC (b) DPME (c) COLD (d) AMJB
- 36.If CAT is written as TAC, how is SHIP written in the same code? (a) QJIT (b) TIJQ (c) PIHS (d) OHGR
- 37.If STAR is written as HGZI, how is HAND written in the same code? (a) RYLV (b) TANX (c) SZMW (d) IBOE
- 38.If TOYS is written as SYOT, how is BELL written in the same code? (a) CFMM (b) LLEB (c) KKDA (d) MMFC
- 39.If WIND is written as DNIW, how is FISH written in the same code? (a) ITJG (b) GRHE (c) HSIF (d) GJTI
- 40.If CAT is written as TAC, how is SUN written in the same code? (a) MTR (b) TVO (c) NUS (d) OVT
Answer key
- GRHE
- NIAR
- WLT
- GORF
- NUS
- NIAR
- DDQS
- TLOW
- VWDU
- WIFN
- RMWQ
- OWTF
- RATS
- MDO
- MURD
- CBMM
- LLAB
- NROP
- ZMYR
- NVSE
- KVM
- NEP
- YVOO
- FNC
- EMPH
- SYOT
- JRDC
- NROP
- OHGR
- DNIW
- NUS
- BNKC
- TLOW
- DQQM
- BNKC
- PIHS
- SZMW
- LLEB
- HSIF
- NUS
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