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 BELL is written as LLEB, how is TREE written in the same code? (a) USFF (b) DDQS (c) FFSU (d) EERT
- 2.If JUMP is written as KVNQ, how is PEN written in the same code? (a) RGP (b) QFO (c) OFQ (d) ODM
- 3.If STAR is written as TCVU, how is FISH written in the same code? (a) HSIF (b) FQGD (c) HKUJ (d) JUKH
- 4.If DESK is written as WVHP, how is CAKE written in the same code? (a) WYOU (b) YAQW (c) XZPV (d) DBLF
- 5.If BELL is written as CFMM, how is DRUM written in the same code? (a) NVSE (b) FTWO (c) CQTL (d) ESVN
- 6.If DRUM is written as MURD, how is TOYS written in the same code? (a) TZPU (b) RXNS (c) UPZT (d) SYOT
- 7.If DOG is written as HPE, how is JUMP written in the same code? (a) OLTI (b) KVNQ (c) PMUJ (d) QNVK
- 8.If STAR is written as RATS, how is LAMP written in the same code? (a) OLZK (b) PMAL (c) MBNQ (d) QNBM
- 9.If FROG is written as FNQE, how is BELL written in the same code? (a) LLEB (b) KKDA (c) ADKK (d) MMFC
- 10.If RAIN is written as PKCT, how is SUN written in the same code? (a) PWU (b) NUS (c) UWP (d) LSQ
- 11.If TREE is written as GGTV, how is FISH written in the same code? (a) HSIF (b) JUKH (c) HKUJ (d) FQGD
- 12.If NEST is written as TSEN, how is CAT written in the same code? (a) SZB (b) TAC (c) UBD (d) DBU
- 13.If COLD is written as DLOC, how is NEST written in the same code? (a) SRDM (b) TSEN (c) OFTU (d) UTFO
- 14.If DRUM is written as OWTF, how is JUMP written in the same code? (a) PMUJ (b) LWOR (c) NKSH (d) ROWL
- 15.If LION is written as ORLM, how is FISH written in the same code? (a) GJTI (b) TQGR (c) URHS (d) VSIT
- 16.If DESK is written as WVHP, how is FROG written in the same code? (a) GSPH (b) VJMU (c) THKS (d) UILT
- 17.If GOLD is written as DLOG, how is FISH written in the same code? (a) ITJG (b) GRHE (c) HSIF (d) GJTI
- 18.If FISH is written as URHS, how is CAT written in the same code? (a) XZG (b) WYF (c) YAH (d) DBU
- 19.If GOLD is written as EMJB, how is CAKE written in the same code? (a) ZXHB (b) BZJD (c) ECMG (d) AYIC
- 20.If LAMP is written as OZNK, how is BALL written in the same code? (a) ZAPP (b) XYNN (c) YZOO (d) CBMM
- 21.If DOG is written as HPE, how is CAKE written in the same code? (a) DBLF (b) FLBD (c) DJZB (d) EKAC
- 22.If LION is written as NOIL, how is MOON written in the same code? (a) OPPN (b) MNNL (c) NPPO (d) NOOM
- 23.If DESK is written as JRDC, how is FROG written in the same code? (a) FNQE (b) GORF (c) HPSG (d) EQNF
- 24.If MILK is written as PLON, how is BOAT written in the same code? (a) YLXQ (b) DQCV (c) FSEX (d) ERDW
- 25.If STAR is written as UVCT, how is BOOK written in the same code? (a) DQQM (b) ERRN (c) CPPL (d) ZMMI
- 26.If FROG is written as IQTH, how is DRUM written in the same code? (a) MURD (b) KSPB (c) FTWO (d) OWTF
- 27.If KITE is written as ETIK, how is BOAT written in the same code? (a) TAOB (b) UBPC (c) SZNA (d) CPBU
- 28.If SUN is written as PWU, how is COLD written in the same code? (a) BJMA (b) FNQE (c) EQNF (d) DLOC
- 29.If PEN is written as NCL, how is SUN written in the same code? (a) QSL (b) PRK (c) RTM (d) UWP
- 30.If FROG is written as GORF, how is CAT written in the same code? (a) SZB (b) DBU (c) TAC (d) UBD
- 31.If SUN is written as HFM, how is CAT written in the same code? (a) WYF (b) XZG (c) YAH (d) DBU
- 32.If PARK is written as JQZO, how is CAT written in the same code? (a) TAC (b) SZB (c) UBD (d) BZS
- 33.If GOLD is written as DLOG, how is MILK written in the same code? (a) NJML (b) JKHL (c) KLIM (d) LMJN
- 34.If DOG is written as CNF, how is BOOK written in the same code? (a) CPPL (b) ZMMI (c) ANNJ (d) BOOK
- 35.If TREE is written as EERT, how is LION written in the same code? (a) OPJM (b) NOIL (c) MJPO (d) MNHK
- 36.If PEN is written as OFQ, how is SHIP written in the same code? (a) PIHS (b) OHGR (c) TIJQ (d) QJIT
- 37.If CAKE is written as XZPV, how is BELL written in the same code? (a) CFMM (b) YVOO (c) XUNN (d) ZWPP
- 38.If MILK is written as KLIM, how is RAIN written in the same code? (a) MHZQ (b) OJBS (c) SBJO (d) NIAR
- 39.If MILK is written as NROP, how is GOLD written in the same code? (a) TLOW (b) UMPX (c) HPME (d) SKNV
- 40.If WIND is written as EOJX, how is PEN written in the same code? (a) QFO (b) MDO (c) NEP (d) OFQ
Answer key
- EERT
- QFO
- JUKH
- XZPV
- ESVN
- SYOT
- QNVK
- PMAL
- KKDA
- PWU
- JUKH
- TAC
- TSEN
- ROWL
- URHS
- UILT
- HSIF
- XZG
- AYIC
- YZOO
- FLBD
- NOOM
- FNQE
- ERDW
- DQQM
- OWTF
- TAOB
- FNQE
- QSL
- TAC
- XZG
- SZB
- KLIM
- ANNJ
- NOIL
- QJIT
- YVOO
- NIAR
- TLOW
- OFQ
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