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 BOAT is written as YLZG, how is DRUM written in the same code? (a) VHEM (b) XJGO (c) WIFN (d) ESVN
- 2.If CAT is written as ECV, how is DESK written in the same code? (a) BCQI (b) EFTL (c) FGUM (d) GHVN
- 3.If NEST is written as MDRS, how is FISH written in the same code? (a) GJTI (b) FISH (c) EHRG (d) DGQF
- 4.If WIND is written as DRMW, how is BOAT written in the same code? (a) CPBU (b) XKYF (c) ZMAH (d) YLZG
- 5.If FROG is written as FNQE, how is MILK written in the same code? (a) LMJN (b) LHKJ (c) KLIM (d) JKHL
- 6.If TOYS is written as VQAU, how is KITE written in the same code? (a) IGRC (b) LJUF (c) NLWH (d) MKVG
- 7.If BELL is written as LLEB, how is WIND written in the same code? (a) CMHV (b) DNIW (c) XJOE (d) EOJX
- 8.If TREE is written as FFSU, how is DESK written in the same code? (a) LTFE (b) EFTL (c) JRDC (d) KSED
- 9.If TREE is written as EERT, how is CAKE written in the same code? (a) EKAC (b) FLBD (c) DJZB (d) DBLF
- 10.If GOLD is written as DLOG, how is BOAT written in the same code? (a) SZNA (b) UBPC (c) TAOB (d) CPBU
- 11.If FROG is written as GORF, how is TREE written in the same code? (a) USFF (b) FFSU (c) EERT (d) DDQS
- 12.If TREE is written as EERT, how is BOOK written in the same code? (a) CPPL (b) KOOB (c) LPPC (d) JNNA
- 13.If RAIN is written as SBJO, how is DRUM written in the same code? (a) FTWO (b) ESVN (c) CQTL (d) NVSE
- 14.If DRUM is written as ESVN, how is COLD written in the same code? (a) BNKC (b) EQNF (c) DPME (d) EMPD
- 15.If SUN is written as OVT, how is DOG written in the same code? (a) EPH (b) HPE (c) FNC (d) GOD
- 16.If PEN is written as NEP, how is CAT written in the same code? (a) SZB (b) UBD (c) TAC (d) DBU
- 17.If DOG is written as WLT, how is TREE written in the same code? (a) HJWW (b) GIVV (c) USFF (d) FHUU
- 18.If MILK is written as KLIM, how is TOYS written in the same code? (a) SYOT (b) TZPU (c) UPZT (d) RXNS
- 19.If JUMP is written as PMUJ, how is COLD written in the same code? (a) DPME (b) DLOC (c) CKNB (d) EMPD
- 20.If MILK is written as LMJN, how is TOYS written in the same code? (a) RXNS (b) TZPU (c) UPZT (d) SYOT
- 21.If FROG is written as DPME, how is FISH written in the same code? (a) HKUJ (b) CFPE (c) EHRG (d) DGQF
- 22.If BOAT is written as YLZG, how is PEN written in the same code? (a) LWN (b) QFO (c) KVM (d) JUL
- 23.If RAIN is written as IZRM, how is DESK written in the same code? (a) XWIQ (b) EFTL (c) WVHP (d) VUGO
- 24.If KITE is written as ETIK, how is LAMP written in the same code? (a) QNBM (b) PMAL (c) MBNQ (d) OLZK
- 25.If PEN is written as KVM, how is TREE written in the same code? (a) HJWW (b) USFF (c) FHUU (d) GIVV
- 26.If FROG is written as HPSG, how is CAT written in the same code? (a) TAC (b) DBU (c) SZB (d) UBD
- 27.If COLD is written as EMPD, how is STAR written in the same code? (a) RATS (b) SBUT (c) QZSR (d) TUBS
- 28.If CAT is written as TAC, how is WIND written in the same code? (a) EOJX (b) CMHV (c) DNIW (d) XJOE
- 29.If DOG is written as GOD, how is RAIN written in the same code? (a) SBJO (b) NIAR (c) MHZQ (d) OJBS
- 30.If HAND is written as SZMW, how is TOYS written in the same code? (a) GLBH (b) FKAG (c) UPZT (d) HMCI
- 31.If BOOK is written as LPPC, how is SUN written in the same code? (a) MTR (b) NUS (c) TVO (d) OVT
- 32.If DESK is written as WVHP, how is MILK written in the same code? (a) NJML (b) MQNO (c) OSPQ (d) NROP
- 33.If GOLD is written as EMPH, how is MILK written in the same code? (a) NJML (b) LMJN (c) JKHL (d) KLIM
- 34.If KITE is written as NLWH, how is WIND written in the same code? (a) TFKA (b) AMRH (c) YKPF (d) ZLQG
- 35.If DOG is written as GOD, how is FROG written in the same code? (a) FNQE (b) HPSG (c) GORF (d) GSPH
- 36.If MOON is written as PQQO, how is CAKE written in the same code? (a) CIYA (b) EKAC (c) GMCE (d) ECMG
- 37.If CAT is written as XZG, how is GOLD written in the same code? (a) HPME (b) SKNV (c) TLOW (d) UMPX
- 38.If BOOK is written as KOOB, how is LION written in the same code? (a) MJPO (b) MNHK (c) OPJM (d) NOIL
- 39.If CAT is written as UBD, how is BELL written in the same code? (a) CFMM (b) MMFC (c) LLEB (d) KKDA
- 40.If CAKE is written as XZPV, how is PEN written in the same code? (a) LWN (b) JUL (c) QFO (d) KVM
Answer key
- WIFN
- FGUM
- EHRG
- YLZG
- JKHL
- MKVG
- DNIW
- LTFE
- EKAC
- TAOB
- EERT
- KOOB
- ESVN
- DPME
- HPE
- TAC
- GIVV
- SYOT
- DLOC
- TZPU
- DGQF
- KVM
- WVHP
- PMAL
- GIVV
- UBD
- SBUT
- DNIW
- NIAR
- GLBH
- OVT
- NROP
- LMJN
- ZLQG
- GORF
- GMCE
- TLOW
- NOIL
- MMFC
- KVM
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