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 SUN is written as PWU, how is DOG written in the same code? (a) FQI (b) IQF (c) EMB (d) GOD
- 2.If SHIP is written as RGHO, how is SUN written in the same code? (a) TVO (b) QSL (c) SUN (d) RTM
- 3.If NEST is written as MVHG, how is SUN written in the same code? (a) HFM (b) IGN (c) GEL (d) TVO
- 4.If DOG is written as GOD, how is LAMP written in the same code? (a) QNBM (b) OLZK (c) MBNQ (d) PMAL
- 5.If KITE is written as ETIK, how is GOLD written in the same code? (a) HPME (b) CKNF (c) EMPH (d) DLOG
- 6.If BELL is written as KKDA, how is DRUM written in the same code? (a) MURD (b) NVSE (c) CQTL (d) LTQC
- 7.If MILK is written as PLON, how is MOON written in the same code? (a) OQQP (b) QSSR (c) PRRQ (d) JLLK
- 8.If DRUM is written as CQTL, how is STAR written in the same code? (a) STAR (b) QRYP (c) TUBS (d) RSZQ
- 9.If PEN is written as RGP, how is FISH written in the same code? (a) DGQF (b) ILVK (c) HKUJ (d) GJTI
- 10.If CAT is written as XZG, how is BELL written in the same code? (a) YVOO (b) CFMM (c) XUNN (d) ZWPP
- 11.If LAMP is written as PMAL, how is LION written in the same code? (a) NOIL (b) MJPO (c) MNHK (d) OPJM
- 12.If BALL is written as ZYJJ, how is SUN written in the same code? (a) UWP (b) QSL (c) RTM (d) PRK
- 13.If DOG is written as HPE, how is FISH written in the same code? (a) HSIF (b) ITJG (c) GRHE (d) GJTI
- 14.If KITE is written as GVKM, how is MOON written in the same code? (a) NOOM (b) PQQO (c) OQQP (d) LMMK
- 15.If BELL is written as LLEB, how is GOLD written in the same code? (a) HPME (b) EMPH (c) CKNF (d) DLOG
- 16.If TREE is written as GGTV, how is SUN written in the same code? (a) NUS (b) UWP (c) PWU (d) LSQ
- 17.If DOG is written as FQI, how is RAIN written in the same code? (a) SBJO (b) UDLQ (c) TCKP (d) PYGL
- 18.If PEN is written as ODM, how is HAND written in the same code? (a) FYLB (b) HAND (c) IBOE (d) GZMC
- 19.If JUMP is written as ITLO, how is FISH written in the same code? (a) GJTI (b) DGQF (c) EHRG (d) FISH
- 20.If TOYS is written as TZPU, how is LION written in the same code? (a) MJPO (b) NOIL (c) MNHK (d) OPJM
- 21.If LAMP is written as ROCN, how is KITE written in the same code? (a) GVKM (b) MKVG (c) ETIK (d) CRGI
- 22.If HAND is written as DNAH, how is CAT written in the same code? (a) SZB (b) TAC (c) DBU (d) UBD
- 23.If HAND is written as JCPF, how is PEN written in the same code? (a) QFO (b) SHQ (c) RGP (d) NCL
- 24.If FROG is written as IQTH, how is GOLD written in the same code? (a) DLOG (b) FNQI (c) BJME (d) IQNF
- 25.If DOG is written as GOD, how is SUN written in the same code? (a) MTR (b) OVT (c) NUS (d) TVO
- 26.If FISH is written as EHRG, how is KITE written in the same code? (a) KITE (b) LJUF (c) JHSD (d) IGRC
- 27.If KITE is written as LJUF, how is PEN written in the same code? (a) QFO (b) ODM (c) OFQ (d) RGP
- 28.If BOOK is written as LPPC, how is BOAT written in the same code? (a) TAOB (b) SZNA (c) UBPC (d) CPBU
- 29.If DRUM is written as NVSE, how is PARK written in the same code? (a) KRAP (b) QBSL (c) JQZO (d) LSBQ
- 30.If SHIP is written as HSRK, how is DRUM written in the same code? (a) XJGO (b) ESVN (c) WIFN (d) VHEM
- 31.If KITE is written as DSHJ, how is CAKE written in the same code? (a) EKAC (b) DJZB (c) BZJD (d) FLBD
- 32.If NEST is written as OFTU, how is SHIP written in the same code? (a) QJIT (b) TIJQ (c) RGHO (d) UJKR
- 33.If MOON is written as NLLM, how is SHIP written in the same code? (a) TIJQ (b) ITSL (c) HSRK (d) GRQJ
- 34.If WIND is written as DNIW, how is FISH written in the same code? (a) ITJG (b) GRHE (c) GJTI (d) HSIF
- 35.If PEN is written as OFQ, how is PARK written in the same code? (a) QBSL (b) LSBQ (c) JQZO (d) KRAP
- 36.If BOOK is written as MQQD, how is LION written in the same code? (a) PQKN (b) LMGJ (c) NKQP (d) NOIL
- 37.If LION is written as MNHK, how is KITE written in the same code? (a) JHSD (b) ETIK (c) DSHJ (d) FUJL
- 38.If PEN is written as NEP, how is DESK written in the same code? (a) JRDC (b) EFTL (c) LTFE (d) KSED
- 39.If PEN is written as KVM, how is BOOK written in the same code? (a) XKKO (b) YLLP (c) CPPL (d) ZMMQ
- 40.If DRUM is written as BPSK, how is KITE written in the same code? (a) IGRC (b) MKVG (c) HFQB (d) JHSD
Answer key
- IQF
- RTM
- HFM
- PMAL
- DLOG
- LTQC
- PRRQ
- RSZQ
- HKUJ
- YVOO
- NOIL
- QSL
- ITJG
- PQQO
- DLOG
- PWU
- TCKP
- GZMC
- EHRG
- OPJM
- GVKM
- TAC
- RGP
- FNQI
- NUS
- JHSD
- QFO
- UBPC
- LSBQ
- WIFN
- DJZB
- TIJQ
- HSRK
- HSIF
- LSBQ
- PQKN
- DSHJ
- KSED
- YLLP
- IGRC
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