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 LION is written as NKQP, how is FISH written in the same code? (a) ILVK (b) HKUJ (c) GJTI (d) DGQF
- 2.If KITE is written as GVKM, how is DOG written in the same code? (a) EMB (b) FQI (c) IQF (d) GOD
- 3.If TREE is written as DDQS, how is DRUM written in the same code? (a) CQTL (b) MURD (c) LTQC (d) NVSE
- 4.If SHIP is written as HSRK, how is BELL written in the same code? (a) YVOO (b) ZWPP (c) XUNN (d) CFMM
- 5.If PEN is written as RGP, how is DOG written in the same code? (a) EPH (b) FQI (c) GRJ (d) BME
- 6.If PEN is written as SHQ, how is CAT written in the same code? (a) ECV (b) GEX (c) FDW (d) ZXQ
- 7.If DRUM is written as WIFN, how is BOAT written in the same code? (a) XKYF (b) CPBU (c) ZMAH (d) YLZG
- 8.If BALL is written as YZOO, how is GOLD written in the same code? (a) UMPX (b) SKNV (c) TLOW (d) HPME
- 9.If BALL is written as AZKK, how is FROG written in the same code? (a) DPME (b) GSPH (c) EQNF (d) FROG
- 10.If COLD is written as BNKC, how is WIND written in the same code? (a) XJOE (b) WIND (c) VHMC (d) UGLB
- 11.If BOAT is written as ZMYR, how is LAMP written in the same code? (a) NCOR (b) IXJM (c) KZLO (d) JYKN
- 12.If BOOK is written as YLLP, how is TREE written in the same code? (a) HJWW (b) FHUU (c) USFF (d) GIVV
- 13.If PARK is written as KZIP, how is FROG written in the same code? (a) VJMU (b) THKS (c) UILT (d) GSPH
- 14.If WIND is written as DNIW, how is SUN written in the same code? (a) MTR (b) OVT (c) NUS (d) TVO
- 15.If LION is written as NOIL, how is MILK written in the same code? (a) LMJN (b) NJML (c) KLIM (d) JKHL
- 16.If DOG is written as GOD, how is DRUM written in the same code? (a) ESVN (b) MURD (c) NVSE (d) LTQC
- 17.If KITE is written as ETIK, how is RAIN written in the same code? (a) SBJO (b) OJBS (c) MHZQ (d) NIAR
- 18.If LAMP is written as KZLO, how is LION written in the same code? (a) KHNM (b) JGML (c) MJPO (d) LION
- 19.If FISH is written as URHS, how is PEN written in the same code? (a) JUL (b) QFO (c) KVM (d) LWN
- 20.If WIND is written as VHMC, how is BOAT written in the same code? (a) CPBU (b) ZMYR (c) ANZS (d) BOAT
- 21.If COLD is written as EMPD, how is DESK written in the same code? (a) JRDC (b) EFTL (c) KSED (d) LTFE
- 22.If LION is written as OPJM, how is COLD written in the same code? (a) DLOC (b) CKNB (c) EMPD (d) DPME
- 23.If DRUM is written as OWTF, how is MOON written in the same code? (a) NOOM (b) PQQO (c) LMMK (d) OQQP
- 24.If BALL is written as YZOO, how is DRUM written in the same code? (a) ESVN (b) WIFN (c) XJGO (d) VHEM
- 25.If DRUM is written as WIFN, how is MILK written in the same code? (a) MQNO (b) NJML (c) NROP (d) OSPQ
- 26.If PARK is written as KZIP, how is MOON written in the same code? (a) NPPO (b) MKKL (c) OMMN (d) NLLM
- 27.If DOG is written as IQF, how is BALL written in the same code? (a) JJYZ (b) DCNN (c) NNCD (d) LLAB
- 28.If NEST is written as UTFO, how is GOLD written in the same code? (a) EMPH (b) CKNF (c) DLOG (d) HPME
- 29.If PARK is written as SDUN, how is SUN written in the same code? (a) VXQ (b) UWP (c) PRK (d) WYR
- 30.If DESK is written as FGUM, how is CAT written in the same code? (a) FDW (b) ECV (c) DBU (d) AYR
- 31.If PARK is written as KZIP, how is BOOK written in the same code? (a) CPPL (b) YLLP (c) XKKO (d) ZMMQ
- 32.If WIND is written as DNIW, how is CAT written in the same code? (a) DBU (b) SZB (c) UBD (d) TAC
- 33.If SUN is written as UWP, how is CAT written in the same code? (a) ECV (b) AYR (c) FDW (d) DBU
- 34.If DOG is written as WLT, how is KITE written in the same code? (a) PRGV (b) LJUF (c) OQFU (d) QSHW
- 35.If MILK is written as JKHL, how is PEN written in the same code? (a) ODM (b) OFQ (c) MDO (d) NEP
- 36.If PEN is written as NEP, how is GOLD written in the same code? (a) EMPH (b) HPME (c) CKNF (d) DLOG
- 37.If FROG is written as GORF, how is PEN written in the same code? (a) OFQ (b) MDO (c) QFO (d) NEP
- 38.If DOG is written as IQF, how is DRUM written in the same code? (a) MURD (b) FTWO (c) OWTF (d) KSPB
- 39.If BALL is written as LLAB, how is MOON written in the same code? (a) MNNL (b) NOOM (c) NPPO (d) OPPN
- 40.If SHIP is written as OHGR, how is NEST written in the same code? (a) TSEN (b) UTFO (c) MDRS (d) SRDM
Answer key
- HKUJ
- IQF
- LTQC
- YVOO
- FQI
- FDW
- YLZG
- TLOW
- EQNF
- VHMC
- JYKN
- GIVV
- UILT
- NUS
- KLIM
- MURD
- NIAR
- KHNM
- KVM
- ANZS
- LTFE
- EMPD
- PQQO
- WIFN
- NROP
- NLLM
- NNCD
- EMPH
- VXQ
- ECV
- YLLP
- TAC
- ECV
- PRGV
- MDO
- DLOG
- NEP
- OWTF
- NOOM
- SRDM
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