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 PEN is written as NEP, how is JUMP written in the same code? (a) PMUJ (b) KVNQ (c) OLTI (d) QNVK
- 2.If SHIP is written as UJKR, how is FISH written in the same code? (a) DGQF (b) HKUJ (c) GJTI (d) ILVK
- 3.If CAT is written as TAC, how is COLD written in the same code? (a) DLOC (b) CKNB (c) DPME (d) EMPD
- 4.If BOOK is written as KOOB, how is STAR written in the same code? (a) QZSR (b) RATS (c) TUBS (d) SBUT
- 5.If DOG is written as WLT, how is FROG written in the same code? (a) UILT (b) VJMU (c) GSPH (d) THKS
- 6.If BOOK is written as KOOB, how is JUMP written in the same code? (a) QNVK (b) OLTI (c) KVNQ (d) PMUJ
- 7.If MILK is written as KLIM, how is LAMP written in the same code? (a) PMAL (b) OLZK (c) QNBM (d) MBNQ
- 8.If TOYS is written as UPZT, how is COLD written in the same code? (a) DPME (b) EQNF (c) BNKC (d) EMPD
- 9.If SUN is written as RTM, how is BELL written in the same code? (a) BELL (b) CFMM (c) ZCJJ (d) ADKK
- 10.If JUMP is written as LWOR, how is PEN written in the same code? (a) SHQ (b) QFO (c) RGP (d) NCL
- 11.If FISH is written as HSIF, how is MILK written in the same code? (a) JKHL (b) KLIM (c) NJML (d) LMJN
- 12.If BELL is written as CFMM, how is PARK written in the same code? (a) QBSL (b) OZQJ (c) RCTM (d) LSBQ
- 13.If DOG is written as FNC, how is CAT written in the same code? (a) SZB (b) UBD (c) BZS (d) TAC
- 14.If PARK is written as QBSL, how is COLD written in the same code? (a) BNKC (b) EQNF (c) DPME (d) EMPD
- 15.If CAT is written as UBD, how is NEST written in the same code? (a) OFTU (b) SRDM (c) TSEN (d) UTFO
- 16.If TOYS is written as SYOT, how is DOG written in the same code? (a) GOD (b) FNC (c) EPH (d) HPE
- 17.If NEST is written as VUGP, how is SUN written in the same code? (a) LSQ (b) PWU (c) UWP (d) NUS
- 18.If LAMP is written as OZNK, how is KITE written in the same code? (a) OQFU (b) QSHW (c) LJUF (d) PRGV
- 19.If DRUM is written as CQTL, how is BALL written in the same code? (a) BALL (b) ZYJJ (c) CBMM (d) AZKK
- 20.If NEST is written as MVHG, how is TREE written in the same code? (a) FHUU (b) USFF (c) HJWW (d) GIVV
- 21.If SHIP is written as QFGN, how is FISH written in the same code? (a) CFPE (b) HKUJ (c) EHRG (d) DGQF
- 22.If BOOK is written as DQQM, how is CAKE written in the same code? (a) AYIC (b) FDNH (c) DBLF (d) ECMG
- 23.If STAR is written as VWDU, how is MILK written in the same code? (a) OKNM (b) QMPO (c) PLON (d) JFIH
- 24.If CAT is written as ECV, how is BOOK written in the same code? (a) DQQM (b) CPPL (c) ZMMI (d) ERRN
- 25.If DOG is written as GOD, how is TOYS written in the same code? (a) RXNS (b) TZPU (c) SYOT (d) UPZT
- 26.If DRUM is written as CQTL, how is SUN written in the same code? (a) TVO (b) SUN (c) QSL (d) RTM
- 27.If MOON is written as KMML, how is CAT written in the same code? (a) ECV (b) BZS (c) ZXQ (d) AYR
- 28.If FISH is written as GJTI, how is MILK written in the same code? (a) NJML (b) LMJN (c) OKNM (d) LHKJ
- 29.If TREE is written as EERT, how is LION written in the same code? (a) MJPO (b) MNHK (c) NOIL (d) OPJM
- 30.If WIND is written as DNIW, how is DOG written in the same code? (a) FNC (b) HPE (c) GOD (d) EPH
- 31.If CAKE is written as XZPV, how is TOYS written in the same code? (a) GLBH (b) HMCI (c) UPZT (d) FKAG
- 32.If MILK is written as OKNM, how is BALL written in the same code? (a) CBMM (b) DCNN (c) EDOO (d) ZYJJ
- 33.If CAT is written as XZG, how is GOLD written in the same code? (a) UMPX (b) TLOW (c) HPME (d) SKNV
- 34.If DOG is written as EPH, how is STAR written in the same code? (a) TUBS (b) SBUT (c) UVCT (d) RSZQ
- 35.If WIND is written as DNIW, how is STAR written in the same code? (a) SBUT (b) RATS (c) QZSR (d) TUBS
- 36.If SUN is written as TVO, how is SHIP written in the same code? (a) UJKR (b) QJIT (c) TIJQ (d) RGHO
- 37.If FISH is written as DGQF, how is GOLD written in the same code? (a) IQNF (b) EMJB (c) DLIA (d) FNKC
- 38.If DRUM is written as WIFN, how is RAIN written in the same code? (a) JASN (b) HYQL (c) SBJO (d) IZRM
- 39.If BELL is written as YVOO, how is DOG written in the same code? (a) EPH (b) XMU (c) WLT (d) VKS
- 40.If CAKE is written as ECMG, how is HAND written in the same code? (a) FYLB (b) JCPF (c) IBOE (d) KDQG
Answer key
- PMUJ
- HKUJ
- DLOC
- RATS
- UILT
- PMUJ
- PMAL
- DPME
- ADKK
- RGP
- KLIM
- QBSL
- SZB
- DPME
- UTFO
- GOD
- PWU
- PRGV
- AZKK
- GIVV
- DGQF
- ECMG
- PLON
- DQQM
- SYOT
- RTM
- AYR
- NJML
- NOIL
- GOD
- GLBH
- DCNN
- TLOW
- TUBS
- RATS
- TIJQ
- EMJB
- IZRM
- WLT
- JCPF
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