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 SUN is written as OVT, how is FISH written in the same code? (a) HSIF (b) GRHE (c) ITJG (d) GJTI
- 2.If TREE is written as GIVV, how is NEST written in the same code? (a) OFTU (b) MVHG (c) NWIH (d) LUGF
- 3.If BOOK is written as YLLP, how is BELL written in the same code? (a) XUNN (b) YVOO (c) CFMM (d) ZWPP
- 4.If NEST is written as MVHG, how is WIND written in the same code? (a) CQLV (b) XJOE (c) ESNX (d) DRMW
- 5.If NEST is written as UTFO, how is COLD written in the same code? (a) CKNB (b) DLOC (c) EMPD (d) DPME
- 6.If WIND is written as VHMC, how is DOG written in the same code? (a) DOG (b) CNF (c) BME (d) EPH
- 7.If PARK is written as KZIP, how is SUN written in the same code? (a) TVO (b) IGN (c) HFM (d) GEL
- 8.If MILK is written as NJML, how is FROG written in the same code? (a) EQNF (b) HPSG (c) GSPH (d) HTQI
- 9.If CAT is written as SZB, how is TREE written in the same code? (a) EERT (b) DDQS (c) FFSU (d) SQDD
- 10.If PARK is written as RCTM, how is DESK written in the same code? (a) GHVN (b) FGUM (c) EFTL (d) BCQI
- 11.If LAMP is written as PMAL, how is FISH written in the same code? (a) GRHE (b) ITJG (c) GJTI (d) HSIF
- 12.If BOAT is written as TAOB, how is CAKE written in the same code? (a) DJZB (b) DBLF (c) FLBD (d) EKAC
- 13.If FISH is written as GJTI, how is GOLD written in the same code? (a) EMPH (b) HPME (c) IQNF (d) FNKC
- 14.If HAND is written as SZMW, how is CAT written in the same code? (a) YAH (b) DBU (c) XZG (d) WYF
- 15.If BELL is written as YVOO, how is GOLD written in the same code? (a) SKNV (b) HPME (c) UMPX (d) TLOW
- 16.If BOOK is written as YLLP, how is KITE written in the same code? (a) QSHW (b) LJUF (c) PRGV (d) OQFU
- 17.If SHIP is written as HSRK, how is BOOK written in the same code? (a) XKKO (b) ZMMQ (c) CPPL (d) YLLP
- 18.If DESK is written as KSED, how is WIND written in the same code? (a) XJOE (b) DNIW (c) CMHV (d) EOJX
- 19.If DRUM is written as NVSE, how is JUMP written in the same code? (a) OLTI (b) QNVK (c) KVNQ (d) PMUJ
- 20.If MILK is written as KLIM, how is SHIP written in the same code? (a) QJIT (b) TIJQ (c) OHGR (d) PIHS
- 21.If DRUM is written as NVSE, how is SHIP written in the same code? (a) PIHS (b) TIJQ (c) QJIT (d) OHGR
- 22.If DESK is written as KSED, how is PEN written in the same code? (a) QFO (b) NEP (c) MDO (d) OFQ
- 23.If PARK is written as KRAP, how is SUN written in the same code? (a) MTR (b) TVO (c) OVT (d) NUS
- 24.If LION is written as NOIL, how is TREE written in the same code? (a) USFF (b) FFSU (c) EERT (d) DDQS
- 25.If SHIP is written as HSRK, how is SUN written in the same code? (a) TVO (b) HFM (c) IGN (d) GEL
- 26.If STAR is written as RATS, how is DESK written in the same code? (a) JRDC (b) KSED (c) EFTL (d) LTFE
- 27.If DOG is written as FNC, how is TOYS written in the same code? (a) RXNS (b) TZPU (c) SYOT (d) SNXR
- 28.If RAIN is written as PKCT, how is HAND written in the same code? (a) DNAH (b) BLYF (c) FPCJ (d) JCPF
- 29.If COLD is written as DPME, how is DOG written in the same code? (a) HPE (b) FQI (c) EPH (d) CNF
- 30.If HAND is written as CMZG, how is LAMP written in the same code? (a) KZLO (b) OLZK (c) PMAL (d) QNBM
- 31.If SUN is written as PWU, how is FISH written in the same code? (a) HSIF (b) JUKH (c) FQGD (d) HKUJ
- 32.If BALL is written as LLAB, how is SUN written in the same code? (a) TVO (b) MTR (c) NUS (d) OVT
- 33.If COLD is written as BNKC, how is GOLD written in the same code? (a) GOLD (b) FNKC (c) EMJB (d) HPME
- 34.If DESK is written as KSED, how is SUN written in the same code? (a) OVT (b) MTR (c) TVO (d) NUS
- 35.If DOG is written as HPE, how is COLD written in the same code? (a) DPME (b) DLOC (c) EMPD (d) CKNB
- 36.If BOOK is written as CPPL, how is LION written in the same code? (a) NKQP (b) KHNM (c) MJPO (d) OPJM
- 37.If SUN is written as OVT, how is DOG written in the same code? (a) HPE (b) EPH (c) FNC (d) GOD
- 38.If BALL is written as KKZA, how is NEST written in the same code? (a) MDRS (b) SRDM (c) TSEN (d) UTFO
- 39.If PEN is written as MDO, how is MOON written in the same code? (a) MNNL (b) LNNM (c) NOOM (d) OPPN
- 40.If BELL is written as NNGD, how is SHIP written in the same code? (a) UJKR (b) RKJU (c) NGFQ (d) PIHS
Answer key
- ITJG
- MVHG
- YVOO
- DRMW
- EMPD
- CNF
- HFM
- GSPH
- DDQS
- FGUM
- HSIF
- EKAC
- HPME
- XZG
- TLOW
- PRGV
- YLLP
- DNIW
- QNVK
- PIHS
- QJIT
- NEP
- NUS
- EERT
- HFM
- KSED
- RXNS
- FPCJ
- EPH
- OLZK
- JUKH
- NUS
- FNKC
- NUS
- EMPD
- MJPO
- HPE
- SRDM
- MNNL
- RKJU
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