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 KOOB, how is BOAT written in the same code? (a) SZNA (b) TAOB (c) UBPC (d) CPBU
- 2.If MILK is written as KLIM, how is LION written in the same code? (a) MNHK (b) NOIL (c) MJPO (d) OPJM
- 3.If RAIN is written as UDLQ, how is PEN written in the same code? (a) TIR (b) MBK (c) SHQ (d) RGP
- 4.If PARK is written as QBSL, how is GOLD written in the same code? (a) FNKC (b) IQNF (c) EMPH (d) HPME
- 5.If CAT is written as UBD, how is SHIP written in the same code? (a) TIJQ (b) QJIT (c) OHGR (d) PIHS
- 6.If MOON is written as NOOM, how is JUMP written in the same code? (a) KVNQ (b) OLTI (c) PMUJ (d) QNVK
- 7.If CAT is written as DBU, how is BALL written in the same code? (a) CBMM (b) MMBC (c) AZKK (d) DCNN
- 8.If COLD is written as DLOC, how is FROG written in the same code? (a) HPSG (b) GORF (c) GSPH (d) FNQE
- 9.If KITE is written as DSHJ, how is DOG written in the same code? (a) HPE (b) CNF (c) GOD (d) FNC
- 10.If WIND is written as DNIW, how is DESK written in the same code? (a) KSED (b) EFTL (c) JRDC (d) LTFE
- 11.If LION is written as ORLM, how is HAND written in the same code? (a) TANX (b) IBOE (c) RYLV (d) SZMW
- 12.If COLD is written as DLOC, how is DOG written in the same code? (a) FNC (b) GOD (c) HPE (d) EPH
- 13.If BOOK is written as JNNA, how is DOG written in the same code? (a) GOD (b) FNC (c) CNF (d) HPE
- 14.If DOG is written as GOD, how is BELL written in the same code? (a) KKDA (b) LLEB (c) MMFC (d) CFMM
- 15.If SHIP is written as RGHO, how is RAIN written in the same code? (a) QZHM (b) SBJO (c) PYGL (d) RAIN
- 16.If PEN is written as NCL, how is TOYS written in the same code? (a) SNXR (b) VQAU (c) RMWQ (d) QLVP
- 17.If DOG is written as WLT, how is COLD written in the same code? (a) XLOW (b) YMPX (c) DPME (d) WKNV
- 18.If GOLD is written as DLOG, how is DOG written in the same code? (a) HPE (b) EPH (c) GOD (d) FNC
- 19.If PEN is written as NEP, how is FISH written in the same code? (a) HSIF (b) GJTI (c) ITJG (d) GRHE
- 20.If SHIP is written as PIHS, how is MOON written in the same code? (a) MNNL (b) NOOM (c) NPPO (d) OPPN
- 21.If BALL is written as YZOO, how is COLD written in the same code? (a) WKNV (b) XLOW (c) DPME (d) YMPX
- 22.If MILK is written as MNKO, how is LION written in the same code? (a) NKQP (b) NOIL (c) LMGJ (d) PQKN
- 23.If BOAT is written as VCQD, how is WIND written in the same code? (a) DNIW (b) FPKY (c) YKPF (d) BLGU
- 24.If DRUM is written as FTWO, how is PARK written in the same code? (a) NYPI (b) RCTM (c) QBSL (d) SDUN
- 25.If BALL is written as MMBC, how is KITE written in the same code? (a) DSHJ (b) LJUF (c) FUJL (d) ETIK
- 26.If PEN is written as NEP, how is CAT written in the same code? (a) DBU (b) UBD (c) TAC (d) SZB
- 27.If FROG is written as GORF, how is GOLD written in the same code? (a) HPME (b) DLOG (c) EMPH (d) CKNF
- 28.If LAMP is written as PMAL, how is MILK written in the same code? (a) KLIM (b) NJML (c) LMJN (d) JKHL
- 29.If DOG is written as HPE, how is BALL written in the same code? (a) KKZA (b) LLAB (c) CBMM (d) MMBC
- 30.If BOAT is written as YLZG, how is SHIP written in the same code? (a) GRQJ (b) TIJQ (c) HSRK (d) ITSL
- 31.If DRUM is written as MURD, how is PARK written in the same code? (a) QBSL (b) KRAP (c) JQZO (d) LSBQ
- 32.If JUMP is written as QNVK, how is BELL written in the same code? (a) CFMM (b) LLEB (c) KKDA (d) MMFC
- 33.If PEN is written as RGP, how is DOG written in the same code? (a) EPH (b) FQI (c) BME (d) GRJ
- 34.If FROG is written as HTQI, how is PARK written in the same code? (a) NYPI (b) RCTM (c) QBSL (d) SDUN
- 35.If DESK is written as LTFE, how is DRUM written in the same code? (a) MURD (b) LTQC (c) ESVN (d) NVSE
- 36.If BALL is written as DCNN, how is RAIN written in the same code? (a) UDLQ (b) PYGL (c) SBJO (d) TCKP
- 37.If DRUM is written as ESVN, how is CAT written in the same code? (a) BZS (b) DBU (c) UBD (d) ECV
- 38.If SUN is written as HFM, how is BELL written in the same code? (a) CFMM (b) YVOO (c) XUNN (d) ZWPP
- 39.If DOG is written as FNC, how is COLD written in the same code? (a) BNKC (b) EMPD (c) CKNB (d) DLOC
- 40.If CAT is written as SZB, how is BOAT written in the same code? (a) UBPC (b) TAOB (c) ANZS (d) SZNA
Answer key
- TAOB
- NOIL
- SHQ
- HPME
- QJIT
- PMUJ
- CBMM
- GORF
- FNC
- KSED
- SZMW
- GOD
- FNC
- LLEB
- QZHM
- RMWQ
- XLOW
- GOD
- HSIF
- NOOM
- XLOW
- PQKN
- FPKY
- RCTM
- FUJL
- TAC
- DLOG
- KLIM
- MMBC
- HSRK
- KRAP
- MMFC
- FQI
- RCTM
- NVSE
- TCKP
- DBU
- YVOO
- CKNB
- SZNA
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