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 DRUM is written as GUXP, how is WIND written in the same code? (a) ZLQG (b) YKPF (c) TFKA (d) AMRH
- 2.If CAKE is written as GMCE, how is BOOK written in the same code? (a) DQQM (b) IMMZ (c) MQQD (d) KOOB
- 3.If PARK is written as MTCR, how is LAMP written in the same code? (a) NKYJ (b) ROCN (c) NCOR (d) PMAL
- 4.If DOG is written as WLT, how is COLD written in the same code? (a) YMPX (b) XLOW (c) DPME (d) WKNV
- 5.If RAIN is written as SBJO, how is JUMP written in the same code? (a) LWOR (b) ITLO (c) QNVK (d) KVNQ
- 6.If RAIN is written as IZRM, how is MILK written in the same code? (a) MQNO (b) NJML (c) NROP (d) OSPQ
- 7.If LAMP is written as OZNK, how is TOYS written in the same code? (a) HMCI (b) UPZT (c) GLBH (d) FKAG
- 8.If CAT is written as UBD, how is COLD written in the same code? (a) DLOC (b) CKNB (c) EMPD (d) DPME
- 9.If LAMP is written as ROCN, how is CAT written in the same code? (a) VCE (b) ECV (c) TAC (d) RYA
- 10.If CAT is written as BZS, how is MILK written in the same code? (a) LHKJ (b) NJML (c) KGJI (d) MILK
- 11.If SUN is written as TVO, how is CAT written in the same code? (a) UBD (b) ECV (c) BZS (d) DBU
- 12.If DOG is written as GRJ, how is FROG written in the same code? (a) HTQI (b) JVSK (c) IURJ (d) COLD
- 13.If DOG is written as HPE, how is MOON written in the same code? (a) MNNL (b) NOOM (c) OPPN (d) NPPO
- 14.If LION is written as MNHK, how is BELL written in the same code? (a) LLEB (b) ADKK (c) MMFC (d) KKDA
- 15.If COLD is written as FNQE, how is TOYS written in the same code? (a) SYOT (b) QWMR (c) UAQV (d) VQAU
- 16.If SHIP is written as RGHO, how is FISH written in the same code? (a) EHRG (b) FISH (c) GJTI (d) DGQF
- 17.If NEST is written as TSEN, how is TREE written in the same code? (a) FFSU (b) USFF (c) EERT (d) DDQS
- 18.If FISH is written as HSIF, how is WIND written in the same code? (a) CMHV (b) EOJX (c) XJOE (d) DNIW
- 19.If BELL is written as MMFC, how is RAIN written in the same code? (a) SBJO (b) OJBS (c) NIAR (d) MHZQ
- 20.If PEN is written as SHQ, how is BOAT written in the same code? (a) DQCV (b) YLXQ (c) ERDW (d) FSEX
- 21.If TREE is written as GGTV, how is FISH written in the same code? (a) FQGD (b) JUKH (c) HKUJ (d) HSIF
- 22.If TREE is written as SQDD, how is DOG written in the same code? (a) BME (b) EPH (c) DOG (d) CNF
- 23.If TREE is written as RPCC, how is WIND written in the same code? (a) TFKA (b) YKPF (c) UGLB (d) VHMC
- 24.If MOON is written as PQQO, how is NEST written in the same code? (a) TSEN (b) RQCL (c) VUGP (d) PGUV
- 25.If DESK is written as EFTL, how is GOLD written in the same code? (a) HPME (b) EMPH (c) FNKC (d) IQNF
- 26.If CAKE is written as FLBD, how is SHIP written in the same code? (a) TIJQ (b) PIHS (c) OHGR (d) QJIT
- 27.If BALL is written as YZOO, how is BOAT written in the same code? (a) CPBU (b) XKYF (c) ZMAH (d) YLZG
- 28.If SUN is written as HFM, how is CAT written in the same code? (a) DBU (b) YAH (c) WYF (d) XZG
- 29.If COLD is written as DLOC, how is BOOK written in the same code? (a) JNNA (b) CPPL (c) LPPC (d) KOOB
- 30.If TOYS is written as SYOT, how is PARK written in the same code? (a) LSBQ (b) KRAP (c) QBSL (d) JQZO
- 31.If KITE is written as ETIK, how is DRUM written in the same code? (a) NVSE (b) MURD (c) ESVN (d) LTQC
- 32.If BOOK is written as YLLP, how is STAR written in the same code? (a) TUBS (b) HGZI (c) GFYH (d) IHAJ
- 33.If TREE is written as RPCC, how is SHIP written in the same code? (a) PEFM (b) RGHO (c) QFGN (d) UJKR
- 34.If COLD is written as CKNB, how is FISH written in the same code? (a) ITJG (b) HSIF (c) GRHE (d) EHRG
- 35.If DRUM is written as CQTL, how is FROG written in the same code? (a) FROG (b) GSPH (c) DPME (d) EQNF
- 36.If TREE is written as RPCC, how is NEST written in the same code? (a) MDRS (b) PGUV (c) KBPQ (d) LCQR
- 37.If NEST is written as MVHG, how is FISH written in the same code? (a) TQGR (b) GJTI (c) URHS (d) VSIT
- 38.If PEN is written as KVM, how is BOOK written in the same code? (a) YLLP (b) XKKO (c) ZMMQ (d) CPPL
- 39.If KITE is written as PRGV, how is FROG written in the same code? (a) GSPH (b) THKS (c) UILT (d) VJMU
- 40.If BOAT is written as YLZG, how is LION written in the same code? (a) ORLM (b) MJPO (c) PSMN (d) NQKL
Answer key
- ZLQG
- MQQD
- ROCN
- XLOW
- KVNQ
- NROP
- GLBH
- EMPD
- VCE
- LHKJ
- DBU
- IURJ
- OPPN
- KKDA
- UAQV
- EHRG
- EERT
- DNIW
- OJBS
- ERDW
- JUKH
- CNF
- UGLB
- VUGP
- HPME
- QJIT
- YLZG
- XZG
- KOOB
- KRAP
- MURD
- HGZI
- QFGN
- GRHE
- EQNF
- LCQR
- URHS
- YLLP
- UILT
- ORLM
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