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 PARK is written as JQZO, how is CAKE written in the same code? (a) FLBD (b) EKAC (c) DJZB (d) BZJD
- 2.If COLD is written as XLOW, how is BALL written in the same code? (a) CBMM (b) YZOO (c) ZAPP (d) XYNN
- 3.If DOG is written as WLT, how is KITE written in the same code? (a) QSHW (b) LJUF (c) OQFU (d) PRGV
- 4.If BOOK is written as KOOB, how is SHIP written in the same code? (a) TIJQ (b) QJIT (c) OHGR (d) PIHS
- 5.If JUMP is written as PMUJ, how is CAT written in the same code? (a) UBD (b) SZB (c) TAC (d) DBU
- 6.If FROG is written as FNQE, how is RAIN written in the same code? (a) NIAR (b) OJBS (c) QZHM (d) MHZQ
- 7.If MILK is written as OKNM, how is BALL written in the same code? (a) CBMM (b) EDOO (c) ZYJJ (d) DCNN
- 8.If PEN is written as QFO, how is LAMP written in the same code? (a) NCOR (b) QNBM (c) MBNQ (d) KZLO
- 9.If BOOK is written as ERRN, how is SUN written in the same code? (a) UWP (b) PRK (c) VXQ (d) WYR
- 10.If TREE is written as RPCC, how is DRUM written in the same code? (a) BPSK (b) CQTL (c) AORJ (d) FTWO
- 11.If CAT is written as XZG, how is TREE written in the same code? (a) FHUU (b) HJWW (c) GIVV (d) USFF
- 12.If STAR is written as RATS, how is PEN written in the same code? (a) OFQ (b) NEP (c) QFO (d) MDO
- 13.If STAR is written as TUBS, how is DOG written in the same code? (a) CNF (b) FQI (c) EPH (d) HPE
- 14.If KITE is written as PRGV, how is FROG written in the same code? (a) UILT (b) THKS (c) VJMU (d) GSPH
- 15.If NEST is written as PGUV, how is FROG written in the same code? (a) DPME (b) IURJ (c) HTQI (d) GSPH
- 16.If WIND is written as YKPF, how is TREE written in the same code? (a) WUHH (b) USFF (c) RPCC (d) VTGG
- 17.If SUN is written as RTM, how is CAKE written in the same code? (a) CAKE (b) DBLF (c) AYIC (d) BZJD
- 18.If TREE is written as GIVV, how is TOYS written in the same code? (a) UPZT (b) HMCI (c) GLBH (d) FKAG
- 19.If DOG is written as GOD, how is TREE written in the same code? (a) FFSU (b) USFF (c) EERT (d) DDQS
- 20.If FISH is written as EHRG, how is NEST written in the same code? (a) MDRS (b) LCQR (c) NEST (d) OFTU
- 21.If DESK is written as CDRJ, how is LION written in the same code? (a) LION (b) JGML (c) MJPO (d) KHNM
- 22.If SHIP is written as QJIT, how is DRUM written in the same code? (a) NVSE (b) ESVN (c) LTQC (d) MURD
- 23.If CAT is written as XZG, how is DRUM written in the same code? (a) ESVN (b) WIFN (c) XJGO (d) VHEM
- 24.If WIND is written as DNIW, how is FROG written in the same code? (a) FNQE (b) HPSG (c) GSPH (d) GORF
- 25.If SUN is written as PWU, how is BELL written in the same code? (a) LLEB (b) JJCZ (c) NNGD (d) DGNN
- 26.If TREE is written as DDQS, how is JUMP written in the same code? (a) PMUJ (b) ITLO (c) OLTI (d) QNVK
- 27.If FISH is written as HKUJ, how is DESK written in the same code? (a) BCQI (b) GHVN (c) FGUM (d) EFTL
- 28.If BOAT is written as ZMYR, how is STAR written in the same code? (a) PQXO (b) UVCT (c) QRYP (d) RSZQ
- 29.If GOLD is written as EMJB, how is STAR written in the same code? (a) RSZQ (b) PQXO (c) UVCT (d) QRYP
- 30.If STAR is written as RATS, how is FISH written in the same code? (a) GJTI (b) ITJG (c) HSIF (d) GRHE
- 31.If SUN is written as NUS, how is WIND written in the same code? (a) XJOE (b) CMHV (c) DNIW (d) EOJX
- 32.If DRUM is written as WIFN, how is HAND written in the same code? (a) SZMW (b) IBOE (c) TANX (d) RYLV
- 33.If LAMP is written as ODPS, how is PEN written in the same code? (a) TIR (b) RGP (c) MBK (d) SHQ
- 34.If LION is written as MJPO, how is HAND written in the same code? (a) EOBI (b) JCPF (c) IBOE (d) GZMC
- 35.If PEN is written as ODM, how is HAND written in the same code? (a) FYLB (b) IBOE (c) GZMC (d) HAND
- 36.If BOOK is written as CPPL, how is CAKE written in the same code? (a) BZJD (b) FLBD (c) ECMG (d) DBLF
- 37.If LION is written as NOIL, how is SHIP written in the same code? (a) QJIT (b) OHGR (c) PIHS (d) TIJQ
- 38.If WIND is written as DNIW, how is LION written in the same code? (a) MJPO (b) OPJM (c) NOIL (d) MNHK
- 39.If PARK is written as KZIP, how is DOG written in the same code? (a) XMU (b) VKS (c) WLT (d) EPH
- 40.If LAMP is written as MBNQ, how is SUN written in the same code? (a) OVT (b) TVO (c) RTM (d) UWP
Answer key
- DJZB
- YZOO
- PRGV
- PIHS
- TAC
- MHZQ
- DCNN
- MBNQ
- VXQ
- BPSK
- GIVV
- NEP
- EPH
- UILT
- HTQI
- VTGG
- BZJD
- GLBH
- EERT
- MDRS
- KHNM
- NVSE
- WIFN
- GORF
- NNGD
- OLTI
- FGUM
- QRYP
- QRYP
- HSIF
- DNIW
- SZMW
- SHQ
- IBOE
- GZMC
- DBLF
- PIHS
- NOIL
- WLT
- TVO
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