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 BOOK is written as JNNA, how is MOON written in the same code? (a) OPPN (b) NOOM (c) MNNL (d) LNNM
- 2.If PARK is written as KRAP, how is TOYS written in the same code? (a) UPZT (b) TZPU (c) SYOT (d) RXNS
- 3.If COLD is written as XLOW, how is NEST written in the same code? (a) LUGF (b) NWIH (c) MVHG (d) OFTU
- 4.If BOOK is written as ZMMI, how is BOAT written in the same code? (a) DQCV (b) ZMYR (c) ANZS (d) YLXQ
- 5.If SHIP is written as PIHS, how is RAIN written in the same code? (a) OJBS (b) NIAR (c) MHZQ (d) SBJO
- 6.If CAT is written as AYR, how is HAND written in the same code? (a) JCPF (b) GZMC (c) EXKA (d) FYLB
- 7.If BELL is written as LLEB, how is LION written in the same code? (a) MJPO (b) OPJM (c) NOIL (d) MNHK
- 8.If DOG is written as WLT, how is MILK written in the same code? (a) NJML (b) MQNO (c) OSPQ (d) NROP
- 9.If RAIN is written as TCKP, how is STAR written in the same code? (a) QRYP (b) UVCT (c) VWDU (d) TUBS
- 10.If CAKE is written as FLBD, how is SUN written in the same code? (a) OVT (b) TVO (c) MTR (d) NUS
- 11.If SHIP is written as PIHS, how is BALL written in the same code? (a) MMBC (b) CBMM (c) KKZA (d) LLAB
- 12.If COLD is written as FROG, how is CAKE written in the same code? (a) GEOI (b) ECMG (c) FDNH (d) ZXHB
- 13.If LION is written as NOIL, how is HAND written in the same code? (a) EOBI (b) IBOE (c) CMZG (d) DNAH
- 14.If MILK is written as KLIM, how is BOAT written in the same code? (a) SZNA (b) UBPC (c) CPBU (d) TAOB
- 15.If LAMP is written as PMAL, how is DESK written in the same code? (a) LTFE (b) JRDC (c) EFTL (d) KSED
- 16.If HAND is written as GZMC, how is TOYS written in the same code? (a) RMWQ (b) TOYS (c) UPZT (d) SNXR
- 17.If MOON is written as OQQP, how is GOLD written in the same code? (a) EMJB (b) JROG (c) IQNF (d) HPME
- 18.If FROG is written as UILT, how is KITE written in the same code? (a) LJUF (b) PRGV (c) OQFU (d) QSHW
- 19.If GOLD is written as TLOW, how is BELL written in the same code? (a) ZWPP (b) YVOO (c) CFMM (d) XUNN
- 20.If BELL is written as LLEB, how is KITE written in the same code? (a) LJUF (b) ETIK (c) DSHJ (d) FUJL
- 21.If PEN is written as NEP, how is FROG written in the same code? (a) HPSG (b) GORF (c) FNQE (d) GSPH
- 22.If LION is written as ORLM, how is PARK written in the same code? (a) LAJQ (b) JYHO (c) KZIP (d) QBSL
- 23.If BELL is written as KKDA, how is CAKE written in the same code? (a) BZJD (b) DJZB (c) FLBD (d) EKAC
- 24.If WIND is written as DRMW, how is KITE written in the same code? (a) PRGV (b) LJUF (c) OQFU (d) QSHW
- 25.If HAND is written as IBOE, how is TREE written in the same code? (a) SQDD (b) VTGG (c) USFF (d) FFSU
- 26.If RAIN is written as QZHM, how is DOG written in the same code? (a) DOG (b) BME (c) CNF (d) EPH
- 27.If BOOK is written as KOOB, how is JUMP written in the same code? (a) KVNQ (b) OLTI (c) QNVK (d) PMUJ
- 28.If DESK is written as WVHP, how is DOG written in the same code? (a) XMU (b) VKS (c) WLT (d) EPH
- 29.If FISH is written as ILVK, how is LAMP written in the same code? (a) IXJM (b) NCOR (c) PEQT (d) ODPS
- 30.If CAT is written as SZB, how is MILK written in the same code? (a) LMJN (b) LHKJ (c) JKHL (d) KLIM
- 31.If WIND is written as CMHV, how is PARK written in the same code? (a) OZQJ (b) JQZO (c) KRAP (d) LSBQ
- 32.If MOON is written as PRRQ, how is HAND written in the same code? (a) LERH (b) EXKA (c) JCPF (d) KDQG
- 33.If FISH is written as EHRG, how is NEST written in the same code? (a) MDRS (b) LCQR (c) OFTU (d) NEST
- 34.If DRUM is written as MURD, how is DOG written in the same code? (a) EPH (b) GOD (c) HPE (d) FNC
- 35.If FISH is written as URHS, how is TOYS written in the same code? (a) HMCI (b) GLBH (c) FKAG (d) UPZT
- 36.If CAKE is written as FDNH, how is SHIP written in the same code? (a) VKLS (b) WLMT (c) PEFM (d) UJKR
- 37.If GOLD is written as TLOW, how is PARK written in the same code? (a) KZIP (b) LAJQ (c) JYHO (d) QBSL
- 38.If CAT is written as UBD, how is FROG written in the same code? (a) GSPH (b) FNQE (c) GORF (d) HPSG
- 39.If FROG is written as GORF, how is WIND written in the same code? (a) DNIW (b) EOJX (c) XJOE (d) CMHV
- 40.If LAMP is written as ROCN, how is BOAT written in the same code? (a) RYMZ (b) VCQD (c) TAOB (d) DQCV
Answer key
- MNNL
- SYOT
- MVHG
- ZMYR
- NIAR
- FYLB
- NOIL
- NROP
- UVCT
- OVT
- LLAB
- FDNH
- DNAH
- TAOB
- KSED
- SNXR
- IQNF
- PRGV
- YVOO
- ETIK
- GORF
- KZIP
- DJZB
- PRGV
- USFF
- CNF
- PMUJ
- WLT
- ODPS
- JKHL
- JQZO
- KDQG
- MDRS
- GOD
- GLBH
- VKLS
- KZIP
- HPSG
- DNIW
- VCQD
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