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 LION is written as OLRQ, how is GOLD written in the same code? (a) DLIA (b) JROG (c) KSPH (d) IQNF
- 2.If PEN is written as NEP, how is FISH written in the same code? (a) GRHE (b) GJTI (c) HSIF (d) ITJG
- 3.If BALL is written as LLAB, how is MILK written in the same code? (a) NJML (b) JKHL (c) LMJN (d) KLIM
- 4.If RAIN is written as TCKP, how is WIND written in the same code? (a) UGLB (b) XJOE (c) ZLQG (d) YKPF
- 5.If BOAT is written as YLZG, how is WIND written in the same code? (a) DRMW (b) ESNX (c) CQLV (d) XJOE
- 6.If PARK is written as JQZO, how is FISH written in the same code? (a) GRHE (b) HSIF (c) EHRG (d) ITJG
- 7.If KITE is written as PRGV, how is BOOK written in the same code? (a) ZMMQ (b) XKKO (c) YLLP (d) CPPL
- 8.If CAT is written as UBD, how is BELL written in the same code? (a) LLEB (b) MMFC (c) CFMM (d) KKDA
- 9.If NEST is written as TSEN, how is DOG written in the same code? (a) EPH (b) FNC (c) GOD (d) HPE
- 10.If BOAT is written as TAOB, how is NEST written in the same code? (a) UTFO (b) OFTU (c) SRDM (d) TSEN
- 11.If DOG is written as WLT, how is DRUM written in the same code? (a) ESVN (b) XJGO (c) VHEM (d) WIFN
- 12.If LAMP is written as OZNK, how is DOG written in the same code? (a) VKS (b) XMU (c) WLT (d) EPH
- 13.If PARK is written as KZIP, how is LION written in the same code? (a) NQKL (b) ORLM (c) PSMN (d) MJPO
- 14.If SUN is written as NUS, how is PARK written in the same code? (a) JQZO (b) KRAP (c) LSBQ (d) QBSL
- 15.If HAND is written as DNAH, how is TOYS written in the same code? (a) SYOT (b) TZPU (c) UPZT (d) RXNS
- 16.If MOON is written as NLLM, how is KITE written in the same code? (a) OQFU (b) LJUF (c) QSHW (d) PRGV
- 17.If BELL is written as LLEB, how is DRUM written in the same code? (a) MURD (b) LTQC (c) ESVN (d) NVSE
- 18.If MILK is written as LMJN, how is WIND written in the same code? (a) EOJX (b) DNIW (c) XJOE (d) CMHV
- 19.If HAND is written as DNAH, how is DESK written in the same code? (a) EFTL (b) KSED (c) JRDC (d) LTFE
- 20.If PEN is written as NEP, how is BALL written in the same code? (a) LLAB (b) CBMM (c) MMBC (d) KKZA
- 21.If DOG is written as WLT, how is TOYS written in the same code? (a) HMCI (b) FKAG (c) UPZT (d) GLBH
- 22.If LION is written as PQKN, how is DRUM written in the same code? (a) FTWO (b) KSPB (c) OWTF (d) MURD
- 23.If DOG is written as FNC, how is CAT written in the same code? (a) UBD (b) TAC (c) BZS (d) SZB
- 24.If DOG is written as GOD, how is MOON written in the same code? (a) MNNL (b) NPPO (c) OPPN (d) NOOM
- 25.If COLD is written as DLOC, how is PARK written in the same code? (a) LSBQ (b) QBSL (c) JQZO (d) KRAP
- 26.If TOYS is written as GLBH, how is BALL written in the same code? (a) ZAPP (b) XYNN (c) YZOO (d) CBMM
- 27.If SUN is written as NUS, how is MILK written in the same code? (a) JKHL (b) LMJN (c) NJML (d) KLIM
- 28.If LION is written as NOIL, how is SUN written in the same code? (a) NUS (b) OVT (c) MTR (d) TVO
- 29.If TOYS is written as RMWQ, how is COLD written in the same code? (a) ZLIA (b) BNKC (c) EQNF (d) AMJB
- 30.If DOG is written as IQF, how is DESK written in the same code? (a) MUGF (b) KSED (c) IQCB (d) FGUM
- 31.If BOOK is written as KOOB, how is HAND written in the same code? (a) EOBI (b) IBOE (c) CMZG (d) DNAH
- 32.If SUN is written as TVO, how is CAKE written in the same code? (a) DBLF (b) FLBD (c) BZJD (d) ECMG
- 33.If RAIN is written as NIAR, how is TOYS written in the same code? (a) RXNS (b) SYOT (c) UPZT (d) TZPU
- 34.If PARK is written as KZIP, how is TREE written in the same code? (a) FHUU (b) USFF (c) HJWW (d) GIVV
- 35.If LAMP is written as OZNK, how is GOLD written in the same code? (a) UMPX (b) SKNV (c) TLOW (d) HPME
- 36.If KITE is written as IGRC, how is LION written in the same code? (a) IFLK (b) JGML (c) NKQP (d) KHNM
- 37.If PEN is written as RGP, how is PARK written in the same code? (a) QBSL (b) NYPI (c) SDUN (d) RCTM
- 38.If NEST is written as SRDM, how is TREE written in the same code? (a) FFSU (b) EERT (c) SQDD (d) DDQS
- 39.If PARK is written as KZIP, how is FROG written in the same code? (a) UILT (b) VJMU (c) THKS (d) GSPH
- 40.If HAND is written as FPCJ, how is MILK written in the same code? (a) IJGK (b) MNKO (c) KLIM (d) OKNM
Answer key
- JROG
- HSIF
- KLIM
- YKPF
- DRMW
- GRHE
- YLLP
- MMFC
- GOD
- TSEN
- WIFN
- WLT
- ORLM
- KRAP
- SYOT
- PRGV
- MURD
- EOJX
- KSED
- LLAB
- GLBH
- OWTF
- SZB
- NOOM
- KRAP
- YZOO
- KLIM
- NUS
- AMJB
- MUGF
- DNAH
- DBLF
- SYOT
- GIVV
- TLOW
- JGML
- RCTM
- DDQS
- UILT
- MNKO
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