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 TREE is written as EERT, how is LION written in the same code? (a) MNHK (b) OPJM (c) NOIL (d) MJPO
- 2.If LAMP is written as KZLO, how is FISH written in the same code? (a) FISH (b) EHRG (c) GJTI (d) DGQF
- 3.If BALL is written as KKZA, how is BELL written in the same code? (a) ADKK (b) LLEB (c) MMFC (d) KKDA
- 4.If FISH is written as GRHE, how is FROG written in the same code? (a) FNQE (b) HPSG (c) GORF (d) EQNF
- 5.If COLD is written as XLOW, how is GOLD written in the same code? (a) TLOW (b) UMPX (c) HPME (d) SKNV
- 6.If FISH is written as GJTI, how is SUN written in the same code? (a) UWP (b) RTM (c) TVO (d) OVT
- 7.If NEST is written as VUGP, how is DOG written in the same code? (a) GOD (b) IQF (c) EMB (d) FQI
- 8.If RAIN is written as IZRM, how is DESK written in the same code? (a) WVHP (b) VUGO (c) XWIQ (d) EFTL
- 9.If CAT is written as AYR, how is BALL written in the same code? (a) YXII (b) DCNN (c) ZYJJ (d) AZKK
- 10.If PARK is written as QBSL, how is PEN written in the same code? (a) ODM (b) QFO (c) OFQ (d) RGP
- 11.If SHIP is written as TIJQ, how is SUN written in the same code? (a) TVO (b) OVT (c) RTM (d) UWP
- 12.If STAR is written as HGZI, how is COLD written in the same code? (a) WKNV (b) XLOW (c) YMPX (d) DPME
- 13.If DESK is written as KSED, how is DRUM written in the same code? (a) ESVN (b) LTQC (c) MURD (d) NVSE
- 14.If BOOK is written as YLLP, how is STAR written in the same code? (a) HGZI (b) GFYH (c) IHAJ (d) TUBS
- 15.If JUMP is written as PMUJ, how is DRUM written in the same code? (a) ESVN (b) MURD (c) NVSE (d) LTQC
- 16.If MOON is written as OPPN, how is WIND written in the same code? (a) XJOE (b) EOJX (c) CMHV (d) DNIW
- 17.If NEST is written as VUGP, how is SUN written in the same code? (a) NUS (b) LSQ (c) PWU (d) UWP
- 18.If TOYS is written as UPZT, how is HAND written in the same code? (a) EOBI (b) IBOE (c) JCPF (d) GZMC
- 19.If MILK is written as KLIM, how is GOLD written in the same code? (a) DLOG (b) CKNF (c) EMPH (d) HPME
- 20.If BOAT is written as UBPC, how is BOOK written in the same code? (a) JNNA (b) CPPL (c) KOOB (d) LPPC
- 21.If NEST is written as TSEN, how is COLD written in the same code? (a) DPME (b) EMPD (c) CKNB (d) DLOC
- 22.If SHIP is written as OHGR, how is GOLD written in the same code? (a) FNKC (b) EMPH (c) DLOG (d) CKNF
- 23.If DOG is written as EPH, how is TREE written in the same code? (a) SQDD (b) USFF (c) FFSU (d) VTGG
- 24.If STAR is written as RATS, how is DOG written in the same code? (a) EPH (b) FNC (c) GOD (d) HPE
- 25.If MOON is written as NLLM, how is WIND written in the same code? (a) CQLV (b) DRMW (c) ESNX (d) XJOE
- 26.If PARK is written as KZIP, how is BOOK written in the same code? (a) YLLP (b) XKKO (c) CPPL (d) ZMMQ
- 27.If NEST is written as MVHG, how is STAR written in the same code? (a) TUBS (b) HGZI (c) GFYH (d) IHAJ
- 28.If DRUM is written as MURD, how is PARK written in the same code? (a) JQZO (b) QBSL (c) KRAP (d) LSBQ
- 29.If TREE is written as WUHH, how is BALL written in the same code? (a) DCNN (b) YXII (c) EDOO (d) FEPP
- 30.If SHIP is written as RGHO, how is DESK written in the same code? (a) EFTL (b) DESK (c) BCQI (d) CDRJ
- 31.If FROG is written as UILT, how is PARK written in the same code? (a) JYHO (b) KZIP (c) QBSL (d) LAJQ
- 32.If RAIN is written as OJBS, how is SHIP written in the same code? (a) TIJQ (b) OHGR (c) PIHS (d) QJIT
- 33.If TREE is written as DDQS, how is SHIP written in the same code? (a) PIHS (b) RGHO (c) OHGR (d) QJIT
- 34.If CAKE is written as DBLF, how is BOOK written in the same code? (a) LPPC (b) CPPL (c) ANNJ (d) DQQM
- 35.If TREE is written as FFSU, how is FROG written in the same code? (a) FNQE (b) GSPH (c) GORF (d) HPSG
- 36.If LION is written as OPJM, how is COLD written in the same code? (a) DLOC (b) CKNB (c) EMPD (d) DPME
- 37.If DRUM is written as NVSE, how is HAND written in the same code? (a) CMZG (b) IBOE (c) DNAH (d) EOBI
- 38.If TREE is written as GIVV, how is MILK written in the same code? (a) NJML (b) MQNO (c) OSPQ (d) NROP
- 39.If DESK is written as WVHP, how is DOG written in the same code? (a) EPH (b) VKS (c) WLT (d) XMU
- 40.If CAKE is written as XZPV, how is GOLD written in the same code? (a) HPME (b) UMPX (c) SKNV (d) TLOW
Answer key
- NOIL
- EHRG
- KKDA
- FNQE
- TLOW
- TVO
- IQF
- WVHP
- ZYJJ
- QFO
- TVO
- XLOW
- MURD
- HGZI
- MURD
- EOJX
- PWU
- IBOE
- DLOG
- LPPC
- DLOC
- CKNF
- USFF
- GOD
- DRMW
- YLLP
- HGZI
- KRAP
- EDOO
- CDRJ
- KZIP
- QJIT
- OHGR
- CPPL
- HPSG
- EMPD
- EOBI
- NROP
- WLT
- TLOW
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