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 MILK is written as NROP, how is CAT written in the same code? (a) YAH (b) XZG (c) DBU (d) WYF
- 2.If KITE is written as GVKM, how is DESK written in the same code? (a) FGUM (b) IQCB (c) MUGF (d) KSED
- 3.If FROG is written as FNQE, how is STAR written in the same code? (a) QZSR (b) SBUT (c) RATS (d) RSZQ
- 4.If PARK is written as JQZO, how is BOAT written in the same code? (a) SZNA (b) TAOB (c) UBPC (d) ANZS
- 5.If COLD is written as EMPD, how is PARK written in the same code? (a) LSBQ (b) QBSL (c) KRAP (d) JQZO
- 6.If BOOK is written as JNNA, how is BELL written in the same code? (a) ADKK (b) KKDA (c) MMFC (d) LLEB
- 7.If BOOK is written as KOOB, how is DESK written in the same code? (a) LTFE (b) KSED (c) JRDC (d) EFTL
- 8.If MOON is written as MNNL, how is RAIN written in the same code? (a) QZHM (b) OJBS (c) MHZQ (d) NIAR
- 9.If DESK is written as FGUM, how is TOYS written in the same code? (a) RMWQ (b) UPZT (c) VQAU (d) WRBV
- 10.If STAR is written as RATS, how is MOON written in the same code? (a) NOOM (b) NPPO (c) MNNL (d) OPPN
- 11.If FISH is written as HSIF, how is MOON written in the same code? (a) MNNL (b) NPPO (c) OPPN (d) NOOM
- 12.If FROG is written as GORF, how is JUMP written in the same code? (a) QNVK (b) PMUJ (c) OLTI (d) KVNQ
- 13.If STAR is written as UVCT, how is CAKE written in the same code? (a) FDNH (b) DBLF (c) ECMG (d) AYIC
- 14.If MILK is written as JKHL, how is RAIN written in the same code? (a) OJBS (b) MHZQ (c) QZHM (d) NIAR
- 15.If STAR is written as TUBS, how is GOLD written in the same code? (a) EMPH (b) FNKC (c) HPME (d) IQNF
- 16.If BOAT is written as TAOB, how is DOG written in the same code? (a) GOD (b) EPH (c) HPE (d) FNC
- 17.If FROG is written as UILT, how is FISH written in the same code? (a) URHS (b) GJTI (c) VSIT (d) TQGR
- 18.If KITE is written as LJUF, how is SHIP written in the same code? (a) RGHO (b) QJIT (c) UJKR (d) TIJQ
- 19.If DOG is written as EPH, how is LAMP written in the same code? (a) MBNQ (b) NCOR (c) QNBM (d) KZLO
- 20.If DRUM is written as OWTF, how is BOAT written in the same code? (a) RYMZ (b) DQCV (c) TAOB (d) VCQD
- 21.If FROG is written as EQNF, how is SUN written in the same code? (a) SUN (b) QSL (c) TVO (d) RTM
- 22.If COLD is written as DLOC, how is DRUM written in the same code? (a) ESVN (b) NVSE (c) LTQC (d) MURD
- 23.If DOG is written as WLT, how is COLD written in the same code? (a) YMPX (b) DPME (c) WKNV (d) XLOW
- 24.If KITE is written as IGRC, how is GOLD written in the same code? (a) FNKC (b) EMJB (c) DLIA (d) IQNF
- 25.If TOYS is written as UPZT, how is CAT written in the same code? (a) BZS (b) ECV (c) UBD (d) DBU
- 26.If LION is written as NOIL, how is KITE written in the same code? (a) LJUF (b) FUJL (c) DSHJ (d) ETIK
- 27.If GOLD is written as TLOW, how is STAR written in the same code? (a) HGZI (b) GFYH (c) TUBS (d) IHAJ
- 28.If TOYS is written as VQAU, how is DRUM written in the same code? (a) BPSK (b) FTWO (c) GUXP (d) ESVN
- 29.If WIND is written as DRMW, how is LION written in the same code? (a) NQKL (b) MJPO (c) ORLM (d) PSMN
- 30.If BALL is written as MMBC, how is SHIP written in the same code? (a) OHGR (b) PIHS (c) TIJQ (d) QJIT
- 31.If BOOK is written as YLLP, how is PEN written in the same code? (a) KVM (b) JUL (c) QFO (d) LWN
- 32.If LAMP is written as MBNQ, how is SUN written in the same code? (a) TVO (b) UWP (c) RTM (d) OVT
- 33.If DOG is written as WLT, how is TOYS written in the same code? (a) FKAG (b) HMCI (c) UPZT (d) GLBH
- 34.If MOON is written as OPPN, how is TOYS written in the same code? (a) SYOT (b) TZPU (c) RXNS (d) UPZT
- 35.If PARK is written as KRAP, how is PEN written in the same code? (a) OFQ (b) MDO (c) QFO (d) NEP
- 36.If DESK is written as WVHP, how is PARK written in the same code? (a) LAJQ (b) QBSL (c) KZIP (d) JYHO
- 37.If FISH is written as HKUJ, how is FROG written in the same code? (a) GSPH (b) DPME (c) IURJ (d) HTQI
- 38.If BOOK is written as YLLP, how is SHIP written in the same code? (a) ITSL (b) GRQJ (c) TIJQ (d) HSRK
- 39.If KITE is written as ETIK, how is PEN written in the same code? (a) OFQ (b) MDO (c) QFO (d) NEP
- 40.If RAIN is written as IZRM, how is PARK written in the same code? (a) KZIP (b) QBSL (c) LAJQ (d) JYHO
Answer key
- XZG
- MUGF
- QZSR
- SZNA
- LSBQ
- KKDA
- KSED
- MHZQ
- VQAU
- NOOM
- NOOM
- PMUJ
- ECMG
- MHZQ
- HPME
- GOD
- URHS
- TIJQ
- MBNQ
- VCQD
- RTM
- MURD
- XLOW
- EMJB
- DBU
- ETIK
- HGZI
- FTWO
- ORLM
- QJIT
- KVM
- TVO
- GLBH
- TZPU
- NEP
- KZIP
- HTQI
- HSRK
- NEP
- KZIP
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