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 DOG is written as WLT, how is BALL written in the same code? (a) ZAPP (b) CBMM (c) YZOO (d) XYNN
- 2.If BOOK is written as DQQM, how is FISH written in the same code? (a) GJTI (b) ILVK (c) HKUJ (d) DGQF
- 3.If BELL is written as YVOO, how is CAT written in the same code? (a) WYF (b) YAH (c) XZG (d) DBU
- 4.If PARK is written as KZIP, how is DOG written in the same code? (a) XMU (b) WLT (c) EPH (d) VKS
- 5.If HAND is written as IBOE, how is DRUM written in the same code? (a) ESVN (b) CQTL (c) NVSE (d) FTWO
- 6.If WIND is written as DNIW, how is NEST written in the same code? (a) UTFO (b) SRDM (c) OFTU (d) TSEN
- 7.If HAND is written as FPCJ, how is CAT written in the same code? (a) RYA (b) TAC (c) ECV (d) VCE
- 8.If KITE is written as JHSD, how is TOYS written in the same code? (a) RMWQ (b) UPZT (c) SNXR (d) TOYS
- 9.If PARK is written as SDUN, how is CAT written in the same code? (a) GEX (b) ZXQ (c) FDW (d) ECV
- 10.If LION is written as JGML, how is DRUM written in the same code? (a) FTWO (b) BPSK (c) CQTL (d) AORJ
- 11.If LION is written as NOIL, how is PEN written in the same code? (a) OFQ (b) MDO (c) QFO (d) NEP
- 12.If TOYS is written as UPZT, how is DESK written in the same code? (a) FGUM (b) CDRJ (c) EFTL (d) LTFE
- 13.If LION is written as NKQP, how is BOOK written in the same code? (a) ZMMI (b) DQQM (c) ERRN (d) CPPL
- 14.If BELL is written as LLEB, how is BOOK written in the same code? (a) LPPC (b) KOOB (c) CPPL (d) JNNA
- 15.If BALL is written as YZOO, how is RAIN written in the same code? (a) IZRM (b) JASN (c) HYQL (d) SBJO
- 16.If NEST is written as SRDM, how is FISH written in the same code? (a) EHRG (b) HSIF (c) GRHE (d) ITJG
- 17.If BELL is written as KKDA, how is SHIP written in the same code? (a) QJIT (b) RGHO (c) PIHS (d) OHGR
- 18.If JUMP is written as QFNK, how is HAND written in the same code? (a) RYLV (b) SZMW (c) IBOE (d) TANX
- 19.If BOOK is written as YLLP, how is CAT written in the same code? (a) XZG (b) YAH (c) WYF (d) DBU
- 20.If CAKE is written as DBLF, how is PEN written in the same code? (a) RGP (b) OFQ (c) QFO (d) ODM
- 21.If CAT is written as XZG, how is COLD written in the same code? (a) YMPX (b) XLOW (c) WKNV (d) DPME
- 22.If TREE is written as GIVV, how is FISH written in the same code? (a) URHS (b) TQGR (c) GJTI (d) VSIT
- 23.If DESK is written as WVHP, how is BALL written in the same code? (a) YZOO (b) ZAPP (c) XYNN (d) CBMM
- 24.If KITE is written as IGRC, how is MOON written in the same code? (a) LNNM (b) OQQP (c) JLLK (d) KMML
- 25.If PARK is written as KRAP, how is CAT written in the same code? (a) SZB (b) UBD (c) DBU (d) TAC
- 26.If LION is written as ORLM, how is HAND written in the same code? (a) TANX (b) IBOE (c) SZMW (d) RYLV
- 27.If SHIP is written as QJIT, how is PARK written in the same code? (a) KRAP (b) JQZO (c) QBSL (d) LSBQ
- 28.If PARK is written as KZIP, how is SHIP written in the same code? (a) ITSL (b) GRQJ (c) TIJQ (d) HSRK
- 29.If RAIN is written as PYGL, how is PARK written in the same code? (a) RCTM (b) NYPI (c) OZQJ (d) MXOH
- 30.If FISH is written as ITJG, how is SUN written in the same code? (a) NUS (b) MTR (c) TVO (d) OVT
- 31.If MILK is written as KLIM, how is SUN written in the same code? (a) OVT (b) MTR (c) NUS (d) TVO
- 32.If LAMP is written as OLZK, how is RAIN written in the same code? (a) QZHM (b) OJBS (c) MHZQ (d) NIAR
- 33.If MILK is written as MNKO, how is FISH written in the same code? (a) FQGD (b) HKUJ (c) JUKH (d) HSIF
- 34.If COLD is written as EMPD, how is JUMP written in the same code? (a) OLTI (b) PMUJ (c) QNVK (d) KVNQ
- 35.If SHIP is written as RGHO, how is COLD written in the same code? (a) COLD (b) AMJB (c) BNKC (d) DPME
- 36.If LAMP is written as PMAL, how is TREE written in the same code? (a) FFSU (b) USFF (c) EERT (d) DDQS
- 37.If HAND is written as DNAH, how is LAMP written in the same code? (a) QNBM (b) MBNQ (c) OLZK (d) PMAL
- 38.If CAT is written as VCE, how is PEN written in the same code? (a) RGP (b) LCN (c) PGR (d) NEP
- 39.If FROG is written as HPSG, how is LION written in the same code? (a) NOIL (b) MJPO (c) MNHK (d) OPJM
- 40.If FROG is written as GORF, how is MILK written in the same code? (a) JKHL (b) NJML (c) KLIM (d) LMJN
Answer key
- YZOO
- HKUJ
- XZG
- WLT
- ESVN
- TSEN
- VCE
- SNXR
- FDW
- BPSK
- NEP
- EFTL
- DQQM
- KOOB
- IZRM
- GRHE
- OHGR
- SZMW
- XZG
- QFO
- XLOW
- URHS
- YZOO
- KMML
- TAC
- SZMW
- LSBQ
- HSRK
- NYPI
- OVT
- NUS
- MHZQ
- JUKH
- QNVK
- BNKC
- EERT
- PMAL
- PGR
- OPJM
- KLIM
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