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 DOG is written as GOD, how is BOOK written in the same code? (a) CPPL (b) JNNA (c) LPPC (d) KOOB
- 2.If FROG is written as FNQE, how is HAND written in the same code? (a) GZMC (b) DNAH (c) CMZG (d) EOBI
- 3.If BALL is written as KKZA, how is BOOK written in the same code? (a) KOOB (b) LPPC (c) JNNA (d) ANNJ
- 4.If DRUM is written as LTQC, how is STAR written in the same code? (a) QZSR (b) SBUT (c) RATS (d) RSZQ
- 5.If SUN is written as MTR, how is DRUM written in the same code? (a) LTQC (b) NVSE (c) MURD (d) CQTL
- 6.If PARK is written as KZIP, how is SUN written in the same code? (a) IGN (b) TVO (c) HFM (d) GEL
- 7.If CAKE is written as XZPV, how is RAIN written in the same code? (a) JASN (b) HYQL (c) SBJO (d) IZRM
- 8.If STAR is written as HGZI, how is FROG written in the same code? (a) GSPH (b) UILT (c) THKS (d) VJMU
- 9.If LAMP is written as MBNQ, how is CAKE written in the same code? (a) DBLF (b) ECMG (c) FLBD (d) BZJD
- 10.If PEN is written as MDO, how is SHIP written in the same code? (a) QJIT (b) RGHO (c) PIHS (d) OHGR
- 11.If HAND is written as DNAH, how is BOAT written in the same code? (a) CPBU (b) TAOB (c) UBPC (d) SZNA
- 12.If SUN is written as HFM, how is TREE written in the same code? (a) HJWW (b) USFF (c) GIVV (d) FHUU
- 13.If BOOK is written as ANNJ, how is DRUM written in the same code? (a) DRUM (b) BPSK (c) ESVN (d) CQTL
- 14.If JUMP is written as HSKN, how is BOOK written in the same code? (a) YLLH (b) ZMMI (c) ANNJ (d) DQQM
- 15.If NEST is written as MVHG, how is GOLD written in the same code? (a) UMPX (b) HPME (c) TLOW (d) SKNV
- 16.If CAKE is written as XZPV, how is BELL written in the same code? (a) CFMM (b) XUNN (c) YVOO (d) ZWPP
- 17.If NEST is written as UTFO, how is STAR written in the same code? (a) QZSR (b) RATS (c) TUBS (d) SBUT
- 18.If BOOK is written as LPPC, how is NEST written in the same code? (a) OFTU (b) SRDM (c) UTFO (d) TSEN
- 19.If PEN is written as KVM, how is JUMP written in the same code? (a) KVNQ (b) QFNK (c) PEMJ (d) RGOL
- 20.If WIND is written as DNIW, how is MILK written in the same code? (a) NJML (b) KLIM (c) JKHL (d) LMJN
- 21.If MOON is written as PQQO, how is BOAT written in the same code? (a) DQCV (b) TAOB (c) VCQD (d) RYMZ
- 22.If JUMP is written as QFNK, how is LION written in the same code? (a) NQKL (b) PSMN (c) ORLM (d) MJPO
- 23.If DOG is written as CNF, how is MOON written in the same code? (a) LNNM (b) KMML (c) MOON (d) NPPO
- 24.If MILK is written as NROP, how is BOOK written in the same code? (a) XKKO (b) YLLP (c) ZMMQ (d) CPPL
- 25.If BOAT is written as SZNA, how is SHIP written in the same code? (a) QJIT (b) RGHO (c) PIHS (d) OHGR
- 26.If CAT is written as TAC, how is DESK written in the same code? (a) EFTL (b) KSED (c) JRDC (d) LTFE
- 27.If RAIN is written as MHZQ, how is BELL written in the same code? (a) MMFC (b) LLEB (c) ADKK (d) KKDA
- 28.If HAND is written as DNAH, how is SUN written in the same code? (a) TVO (b) NUS (c) MTR (d) OVT
- 29.If TOYS is written as UPZT, how is SUN written in the same code? (a) OVT (b) RTM (c) TVO (d) UWP
- 30.If MOON is written as PQQO, how is MILK written in the same code? (a) KLIM (b) MNKO (c) IJGK (d) OKNM
- 31.If PEN is written as NEP, how is SUN written in the same code? (a) OVT (b) NUS (c) MTR (d) TVO
- 32.If FROG is written as FNQE, how is LION written in the same code? (a) NOIL (b) KHNM (c) OPJM (d) MNHK
- 33.If DOG is written as WLT, how is PEN written in the same code? (a) JUL (b) QFO (c) KVM (d) LWN
- 34.If BOOK is written as ERRN, how is DOG written in the same code? (a) HSK (b) FQI (c) GRJ (d) ALD
- 35.If TREE is written as EERT, how is CAT written in the same code? (a) TAC (b) UBD (c) SZB (d) DBU
- 36.If CAT is written as XZG, how is FISH written in the same code? (a) URHS (b) TQGR (c) VSIT (d) GJTI
- 37.If BOAT is written as TAOB, how is LION written in the same code? (a) OPJM (b) MJPO (c) NOIL (d) MNHK
- 38.If SUN is written as NUS, how is MILK written in the same code? (a) JKHL (b) LMJN (c) NJML (d) KLIM
- 39.If FROG is written as DPME, how is GOLD written in the same code? (a) DLIA (b) FNKC (c) IQNF (d) EMJB
- 40.If STAR is written as QRYP, how is LAMP written in the same code? (a) JYKN (b) NCOR (c) KZLO (d) IXJM
Answer key
- KOOB
- CMZG
- JNNA
- QZSR
- LTQC
- HFM
- IZRM
- UILT
- DBLF
- OHGR
- TAOB
- GIVV
- CQTL
- ZMMI
- TLOW
- YVOO
- SBUT
- UTFO
- QFNK
- KLIM
- VCQD
- ORLM
- LNNM
- YLLP
- OHGR
- KSED
- KKDA
- NUS
- TVO
- MNKO
- NUS
- MNHK
- KVM
- GRJ
- TAC
- URHS
- NOIL
- KLIM
- EMJB
- JYKN
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