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 FISH is written as GRHE, how is TOYS written in the same code? (a) SNXR (b) SYOT (c) TZPU (d) RXNS
- 2.If BOOK is written as YLLP, how is BELL written in the same code? (a) ZWPP (b) XUNN (c) CFMM (d) YVOO
- 3.If BALL is written as LLAB, how is CAKE written in the same code? (a) DJZB (b) DBLF (c) FLBD (d) EKAC
- 4.If NEST is written as MVHG, how is FISH written in the same code? (a) GJTI (b) URHS (c) TQGR (d) VSIT
- 5.If MILK is written as LMJN, how is FISH written in the same code? (a) GJTI (b) HSIF (c) GRHE (d) ITJG
- 6.If MILK is written as OKNM, how is FROG written in the same code? (a) DPME (b) IURJ (c) GSPH (d) HTQI
- 7.If PARK is written as KZIP, how is TOYS written in the same code? (a) GLBH (b) FKAG (c) HMCI (d) UPZT
- 8.If PARK is written as SDUN, how is HAND written in the same code? (a) KDQG (b) LERH (c) JCPF (d) EXKA
- 9.If CAT is written as TAC, how is LION written in the same code? (a) NOIL (b) MNHK (c) OPJM (d) MJPO
- 10.If CAT is written as TAC, how is WIND written in the same code? (a) CMHV (b) DNIW (c) EOJX (d) XJOE
- 11.If LAMP is written as ODPS, how is SUN written in the same code? (a) PRK (b) UWP (c) VXQ (d) WYR
- 12.If CAT is written as ECV, how is BOAT written in the same code? (a) CPBU (b) ERDW (c) ZMYR (d) DQCV
- 13.If MOON is written as NLLM, how is SHIP written in the same code? (a) ITSL (b) HSRK (c) GRQJ (d) TIJQ
- 14.If SUN is written as RTM, how is BOOK written in the same code? (a) CPPL (b) ZMMI (c) BOOK (d) ANNJ
- 15.If MOON is written as PQQO, how is WIND written in the same code? (a) DNIW (b) BLGU (c) YKPF (d) FPKY
- 16.If DESK is written as EFTL, how is DRUM written in the same code? (a) CQTL (b) FTWO (c) ESVN (d) NVSE
- 17.If PARK is written as KZIP, how is WIND written in the same code? (a) DRMW (b) XJOE (c) ESNX (d) CQLV
- 18.If HAND is written as DNAH, how is DRUM written in the same code? (a) LTQC (b) MURD (c) NVSE (d) ESVN
- 19.If FISH is written as HSIF, how is TOYS written in the same code? (a) TZPU (b) UPZT (c) RXNS (d) SYOT
- 20.If HAND is written as IBOE, how is CAKE written in the same code? (a) FLBD (b) ECMG (c) BZJD (d) DBLF
- 21.If CAT is written as VCE, how is BALL written in the same code? (a) JJYZ (b) LLAB (c) DCNN (d) NNCD
- 22.If DOG is written as FNC, how is SHIP written in the same code? (a) RGHO (b) PIHS (c) OHGR (d) QJIT
- 23.If DRUM is written as ESVN, how is CAKE written in the same code? (a) ECMG (b) DBLF (c) BZJD (d) FLBD
- 24.If TREE is written as GIVV, how is KITE written in the same code? (a) LJUF (b) PRGV (c) OQFU (d) QSHW
- 25.If BALL is written as DCNN, how is DRUM written in the same code? (a) GUXP (b) FTWO (c) BPSK (d) ESVN
- 26.If KITE is written as PRGV, how is SHIP written in the same code? (a) GRQJ (b) HSRK (c) TIJQ (d) ITSL
- 27.If SHIP is written as QFGN, how is BALL written in the same code? (a) ZYJJ (b) YXII (c) AZKK (d) DCNN
- 28.If LAMP is written as PMAL, how is CAT written in the same code? (a) UBD (b) TAC (c) SZB (d) DBU
- 29.If DRUM is written as MURD, how is STAR written in the same code? (a) SBUT (b) QZSR (c) RATS (d) TUBS
- 30.If LION is written as OPJM, how is CAKE written in the same code? (a) DJZB (b) DBLF (c) FLBD (d) EKAC
- 31.If DRUM is written as CQTL, how is NEST written in the same code? (a) NEST (b) LCQR (c) MDRS (d) OFTU
- 32.If BOAT is written as CPBU, how is BOOK written in the same code? (a) DQQM (b) ANNJ (c) LPPC (d) CPPL
- 33.If LION is written as NKQP, how is DOG written in the same code? (a) GRJ (b) FQI (c) BME (d) EPH
- 34.If SUN is written as NUS, how is MILK written in the same code? (a) KLIM (b) LMJN (c) NJML (d) JKHL
- 35.If SHIP is written as VKLS, how is BELL written in the same code? (a) YBII (b) FIPP (c) DGNN (d) EHOO
- 36.If MOON is written as NLLM, how is TREE written in the same code? (a) FHUU (b) GIVV (c) HJWW (d) USFF
- 37.If DOG is written as HPE, how is STAR written in the same code? (a) RATS (b) SBUT (c) TUBS (d) QZSR
- 38.If SUN is written as QSL, how is NEST written in the same code? (a) PGUV (b) LCQR (c) MDRS (d) KBPQ
- 39.If KITE is written as PRGV, how is TREE written in the same code? (a) HJWW (b) USFF (c) GIVV (d) FHUU
- 40.If DOG is written as BME, how is PARK written in the same code? (a) RCTM (b) NYPI (c) MXOH (d) OZQJ
Answer key
- RXNS
- YVOO
- EKAC
- URHS
- ITJG
- HTQI
- GLBH
- KDQG
- NOIL
- DNIW
- VXQ
- DQCV
- HSRK
- ANNJ
- FPKY
- ESVN
- DRMW
- MURD
- SYOT
- DBLF
- NNCD
- OHGR
- DBLF
- PRGV
- FTWO
- HSRK
- ZYJJ
- TAC
- RATS
- FLBD
- MDRS
- CPPL
- FQI
- KLIM
- EHOO
- GIVV
- SBUT
- LCQR
- GIVV
- NYPI
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