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 WIND is written as DNIW, how is BELL written in the same code? (a) MMFC (b) CFMM (c) KKDA (d) LLEB
- 2.If BOOK is written as KOOB, how is CAT written in the same code? (a) TAC (b) DBU (c) UBD (d) SZB
- 3.If LAMP is written as QNBM, how is COLD written in the same code? (a) DPME (b) DLOC (c) CKNB (d) EMPD
- 4.If PEN is written as KVM, how is MILK written in the same code? (a) NROP (b) MQNO (c) OSPQ (d) NJML
- 5.If KITE is written as GVKM, how is COLD written in the same code? (a) EQNF (b) FNQE (c) DLOC (d) BJMA
- 6.If SUN is written as HFM, how is MILK written in the same code? (a) NJML (b) MQNO (c) OSPQ (d) NROP
- 7.If BOOK is written as YLLP, how is BELL written in the same code? (a) YVOO (b) XUNN (c) CFMM (d) ZWPP
- 8.If BALL is written as LLAB, how is PARK written in the same code? (a) JQZO (b) KRAP (c) LSBQ (d) QBSL
- 9.If WIND is written as CMHV, how is PEN written in the same code? (a) NEP (b) ODM (c) OFQ (d) MDO
- 10.If MILK is written as KGJI, how is GOLD written in the same code? (a) FNKC (b) IQNF (c) EMJB (d) DLIA
- 11.If NEST is written as TSEN, how is FROG written in the same code? (a) GORF (b) FNQE (c) GSPH (d) HPSG
- 12.If BALL is written as LLAB, how is FISH written in the same code? (a) ITJG (b) GJTI (c) HSIF (d) GRHE
- 13.If TREE is written as EERT, how is RAIN written in the same code? (a) MHZQ (b) NIAR (c) SBJO (d) OJBS
- 14.If BOAT is written as TAOB, how is SUN written in the same code? (a) OVT (b) NUS (c) TVO (d) MTR
- 15.If BOOK is written as DQQM, how is COLD written in the same code? (a) DPME (b) EQNF (c) AMJB (d) FROG
- 16.If PEN is written as ODM, how is FROG written in the same code? (a) FROG (b) GSPH (c) DPME (d) EQNF
- 17.If WIND is written as XJOE, how is PEN written in the same code? (a) ODM (b) OFQ (c) QFO (d) RGP
- 18.If PARK is written as KRAP, how is KITE written in the same code? (a) DSHJ (b) ETIK (c) LJUF (d) FUJL
- 19.If JUMP is written as QNVK, how is LION written in the same code? (a) NOIL (b) MNHK (c) OPJM (d) MJPO
- 20.If DOG is written as FNC, how is DRUM written in the same code? (a) CQTL (b) NVSE (c) MURD (d) LTQC
- 21.If CAT is written as DBU, how is PEN written in the same code? (a) QFO (b) OFQ (c) ODM (d) RGP
- 22.If PEN is written as NEP, how is SHIP written in the same code? (a) QJIT (b) TIJQ (c) PIHS (d) OHGR
- 23.If LAMP is written as NCOR, how is DOG written in the same code? (a) BME (b) GRJ (c) FQI (d) EPH
- 24.If SUN is written as TVO, how is WIND written in the same code? (a) VHMC (b) YKPF (c) EOJX (d) XJOE
- 25.If BOAT is written as UBPC, how is DESK written in the same code? (a) JRDC (b) EFTL (c) LTFE (d) KSED
- 26.If BELL is written as MMFC, how is WIND written in the same code? (a) DNIW (b) EOJX (c) CMHV (d) XJOE
- 27.If SUN is written as HFM, how is SHIP written in the same code? (a) TIJQ (b) ITSL (c) HSRK (d) GRQJ
- 28.If GOLD is written as TLOW, how is RAIN written in the same code? (a) JASN (b) IZRM (c) SBJO (d) HYQL
- 29.If BOOK is written as ERRN, how is MILK written in the same code? (a) QMPO (b) OKNM (c) PLON (d) JFIH
- 30.If DESK is written as CDRJ, how is NEST written in the same code? (a) LCQR (b) OFTU (c) NEST (d) MDRS
- 31.If LION is written as OLRQ, how is MOON written in the same code? (a) QSSR (b) OQQP (c) PRRQ (d) JLLK
- 32.If FISH is written as URHS, how is NEST written in the same code? (a) LUGF (b) MVHG (c) NWIH (d) OFTU
- 33.If GOLD is written as EMPH, how is MOON written in the same code? (a) NOOM (b) MNNL (c) OPPN (d) NPPO
- 34.If STAR is written as RATS, how is FROG written in the same code? (a) HPSG (b) GORF (c) GSPH (d) FNQE
- 35.If DRUM is written as FTWO, how is MILK written in the same code? (a) NJML (b) PLON (c) OKNM (d) KGJI
- 36.If LAMP is written as PMAL, how is FROG written in the same code? (a) FNQE (b) HPSG (c) GSPH (d) GORF
- 37.If SUN is written as TVO, how is MOON written in the same code? (a) LNNM (b) OPPN (c) NPPO (d) OQQP
- 38.If BALL is written as LLAB, how is BOOK written in the same code? (a) LPPC (b) KOOB (c) JNNA (d) CPPL
- 39.If DESK is written as FGUM, how is CAT written in the same code? (a) DBU (b) ECV (c) FDW (d) AYR
- 40.If COLD is written as EMPD, how is HAND written in the same code? (a) CMZG (b) IBOE (c) DNAH (d) EOBI
Answer key
- LLEB
- TAC
- EMPD
- NROP
- FNQE
- NROP
- YVOO
- KRAP
- MDO
- EMJB
- GORF
- HSIF
- NIAR
- NUS
- EQNF
- EQNF
- QFO
- ETIK
- OPJM
- LTQC
- QFO
- PIHS
- FQI
- XJOE
- LTFE
- EOJX
- HSRK
- IZRM
- PLON
- MDRS
- PRRQ
- MVHG
- OPPN
- GORF
- OKNM
- GORF
- NPPO
- KOOB
- ECV
- EOBI
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