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 CMHV, how is HAND written in the same code? (a) EOBI (b) GZMC (c) DNAH (d) CMZG
- 2.If MOON is written as PQQO, how is LAMP written in the same code? (a) PMAL (b) NKYJ (c) ROCN (d) NCOR
- 3.If FROG is written as GORF, how is SUN written in the same code? (a) TVO (b) OVT (c) MTR (d) NUS
- 4.If LAMP is written as OZNK, how is CAT written in the same code? (a) DBU (b) WYF (c) XZG (d) YAH
- 5.If DESK is written as WVHP, how is BOOK written in the same code? (a) XKKO (b) CPPL (c) YLLP (d) ZMMQ
- 6.If MILK is written as KLIM, how is GOLD written in the same code? (a) DLOG (b) HPME (c) CKNF (d) EMPH
- 7.If FISH is written as GRHE, how is PEN written in the same code? (a) NEP (b) ODM (c) OFQ (d) MDO
- 8.If BALL is written as YZOO, how is BOOK written in the same code? (a) XKKO (b) ZMMQ (c) CPPL (d) YLLP
- 9.If COLD is written as EMPD, how is MILK written in the same code? (a) KLIM (b) NJML (c) JKHL (d) LMJN
- 10.If SUN is written as QSL, how is PARK written in the same code? (a) MXOH (b) RCTM (c) OZQJ (d) NYPI
- 11.If TOYS is written as GLBH, how is SUN written in the same code? (a) TVO (b) GEL (c) HFM (d) IGN
- 12.If LAMP is written as QNBM, how is STAR written in the same code? (a) RATS (b) SBUT (c) QZSR (d) TUBS
- 13.If KITE is written as MKVG, how is GOLD written in the same code? (a) HPME (b) EMJB (c) JROG (d) IQNF
- 14.If CAKE is written as FLBD, how is FROG written in the same code? (a) FNQE (b) GSPH (c) GORF (d) HPSG
- 15.If LION is written as OLRQ, how is GOLD written in the same code? (a) IQNF (b) KSPH (c) JROG (d) DLIA
- 16.If TREE is written as GIVV, how is BALL written in the same code? (a) ZAPP (b) XYNN (c) YZOO (d) CBMM
- 17.If KITE is written as IGRC, how is COLD written in the same code? (a) BNKC (b) AMJB (c) EQNF (d) ZLIA
- 18.If JUMP is written as OLTI, how is DRUM written in the same code? (a) MURD (b) NVSE (c) LTQC (d) CQTL
- 19.If DESK is written as WVHP, how is DOG written in the same code? (a) EPH (b) XMU (c) WLT (d) VKS
- 20.If TOYS is written as SYOT, how is LAMP written in the same code? (a) PMAL (b) OLZK (c) QNBM (d) MBNQ
- 21.If RAIN is written as IZRM, how is TOYS written in the same code? (a) HMCI (b) GLBH (c) UPZT (d) FKAG
- 22.If TOYS is written as SYOT, how is NEST written in the same code? (a) OFTU (b) TSEN (c) UTFO (d) SRDM
- 23.If KITE is written as GVKM, how is SUN written in the same code? (a) LSQ (b) PWU (c) NUS (d) UWP
- 24.If TOYS is written as WRBV, how is SUN written in the same code? (a) PRK (b) UWP (c) VXQ (d) WYR
- 25.If DESK is written as KSED, how is MILK written in the same code? (a) JKHL (b) LMJN (c) KLIM (d) NJML
- 26.If LAMP is written as NCOR, how is JUMP written in the same code? (a) KVNQ (b) MXPS (c) HSKN (d) LWOR
- 27.If FISH is written as GJTI, how is WIND written in the same code? (a) YKPF (b) EOJX (c) VHMC (d) XJOE
- 28.If NEST is written as TSEN, how is BALL written in the same code? (a) MMBC (b) LLAB (c) CBMM (d) KKZA
- 29.If JUMP is written as ITLO, how is MOON written in the same code? (a) KMML (b) NPPO (c) LNNM (d) MOON
- 30.If CAKE is written as XZPV, how is DOG written in the same code? (a) XMU (b) VKS (c) EPH (d) WLT
- 31.If SUN is written as TVO, how is TREE written in the same code? (a) FFSU (b) VTGG (c) SQDD (d) USFF
- 32.If DRUM is written as NVSE, how is RAIN written in the same code? (a) MHZQ (b) SBJO (c) NIAR (d) OJBS
- 33.If KITE is written as FUJL, how is GOLD written in the same code? (a) EMPH (b) CKNF (c) HPME (d) DLOG
- 34.If KITE is written as LJUF, how is LAMP written in the same code? (a) MBNQ (b) KZLO (c) QNBM (d) NCOR
- 35.If BELL is written as KKDA, how is COLD written in the same code? (a) EMPD (b) CKNB (c) BNKC (d) DLOC
- 36.If STAR is written as HGZI, how is COLD written in the same code? (a) YMPX (b) DPME (c) WKNV (d) XLOW
- 37.If MILK is written as OKNM, how is DOG written in the same code? (a) EPH (b) GRJ (c) FQI (d) BME
- 38.If BOOK is written as LPPC, how is RAIN written in the same code? (a) SBJO (b) NIAR (c) MHZQ (d) OJBS
- 39.If BOOK is written as MQQD, how is FISH written in the same code? (a) HSIF (b) HKUJ (c) JUKH (d) FQGD
- 40.If DOG is written as IQF, how is CAKE written in the same code? (a) EKAC (b) ECMG (c) GMCE (d) CIYA
Answer key
- CMZG
- ROCN
- NUS
- XZG
- YLLP
- DLOG
- MDO
- YLLP
- LMJN
- NYPI
- HFM
- SBUT
- IQNF
- HPSG
- JROG
- YZOO
- AMJB
- LTQC
- WLT
- PMAL
- GLBH
- TSEN
- PWU
- VXQ
- KLIM
- LWOR
- XJOE
- LLAB
- LNNM
- WLT
- USFF
- OJBS
- EMPH
- MBNQ
- CKNB
- XLOW
- FQI
- OJBS
- JUKH
- GMCE
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