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 COLD is written as XLOW, how is FISH written in the same code? (a) GJTI (b) TQGR (c) VSIT (d) URHS
- 2.If PEN is written as NCL, how is JUMP written in the same code? (a) LWOR (b) HSKN (c) GRJM (d) ITLO
- 3.If MOON is written as NOOM, how is FROG written in the same code? (a) HPSG (b) FNQE (c) GORF (d) GSPH
- 4.If KITE is written as PRGV, how is PARK written in the same code? (a) KZIP (b) JYHO (c) QBSL (d) LAJQ
- 5.If KITE is written as PRGV, how is BOAT written in the same code? (a) YLZG (b) CPBU (c) XKYF (d) ZMAH
- 6.If WIND is written as DNIW, how is STAR written in the same code? (a) RATS (b) SBUT (c) TUBS (d) QZSR
- 7.If DOG is written as GRJ, how is SUN written in the same code? (a) PRK (b) WYR (c) VXQ (d) UWP
- 8.If NEST is written as MVHG, how is MOON written in the same code? (a) MKKL (b) NLLM (c) NPPO (d) OMMN
- 9.If MILK is written as NROP, how is SUN written in the same code? (a) GEL (b) TVO (c) HFM (d) IGN
- 10.If DOG is written as GOD, how is BALL written in the same code? (a) LLAB (b) MMBC (c) CBMM (d) KKZA
- 11.If PEN is written as NEP, how is BOAT written in the same code? (a) SZNA (b) UBPC (c) TAOB (d) CPBU
- 12.If PEN is written as KVM, how is NEST written in the same code? (a) MVHG (b) LUGF (c) NWIH (d) OFTU
- 13.If CAKE is written as XZPV, how is LION written in the same code? (a) PSMN (b) MJPO (c) NQKL (d) ORLM
- 14.If BELL is written as LLEB, how is LION written in the same code? (a) MNHK (b) OPJM (c) NOIL (d) MJPO
- 15.If PEN is written as QFO, how is DOG written in the same code? (a) FQI (b) EPH (c) HPE (d) CNF
- 16.If LION is written as NKQP, how is DOG written in the same code? (a) GRJ (b) BME (c) FQI (d) EPH
- 17.If STAR is written as TUBS, how is FROG written in the same code? (a) HPSG (b) GSPH (c) HTQI (d) EQNF
- 18.If CAT is written as UBD, how is PEN written in the same code? (a) NEP (b) MDO (c) OFQ (d) QFO
- 19.If DRUM is written as LTQC, how is SUN written in the same code? (a) NUS (b) OVT (c) MTR (d) RTM
- 20.If KITE is written as PRGV, how is NEST written in the same code? (a) NWIH (b) MVHG (c) OFTU (d) LUGF
- 21.If LAMP is written as ROCN, how is PEN written in the same code? (a) NEP (b) RGP (c) PGR (d) LCN
- 22.If SUN is written as RTM, how is DESK written in the same code? (a) EFTL (b) BCQI (c) DESK (d) CDRJ
- 23.If JUMP is written as LWOR, how is HAND written in the same code? (a) JCPF (b) KDQG (c) IBOE (d) FYLB
- 24.If DOG is written as BME, how is RAIN written in the same code? (a) OXFK (b) QZHM (c) PYGL (d) TCKP
- 25.If TOYS is written as SYOT, how is RAIN written in the same code? (a) OJBS (b) SBJO (c) NIAR (d) MHZQ
- 26.If DRUM is written as MURD, how is SUN written in the same code? (a) MTR (b) TVO (c) OVT (d) NUS
- 27.If FISH is written as HSIF, how is BELL written in the same code? (a) MMFC (b) CFMM (c) KKDA (d) LLEB
- 28.If RAIN is written as NIAR, how is CAKE written in the same code? (a) DBLF (b) EKAC (c) FLBD (d) DJZB
- 29.If TREE is written as DDQS, how is NEST written in the same code? (a) UTFO (b) SRDM (c) MDRS (d) TSEN
- 30.If DRUM is written as NVSE, how is MILK written in the same code? (a) LMJN (b) NJML (c) KLIM (d) JKHL
- 31.If BALL is written as MMBC, how is TREE written in the same code? (a) DDQS (b) FFSU (c) EERT (d) USFF
- 32.If BOOK is written as ANNJ, how is JUMP written in the same code? (a) KVNQ (b) ITLO (c) JUMP (d) HSKN
- 33.If SUN is written as OVT, how is TOYS written in the same code? (a) UPZT (b) SYOT (c) RXNS (d) TZPU
- 34.If MILK is written as LMJN, how is DOG written in the same code? (a) HPE (b) EPH (c) GOD (d) FNC
- 35.If LAMP is written as QNBM, how is MILK written in the same code? (a) KLIM (b) JKHL (c) NJML (d) LMJN
- 36.If TOYS is written as SNXR, how is RAIN written in the same code? (a) PYGL (b) RAIN (c) SBJO (d) QZHM
- 37.If COLD is written as DLOC, how is TOYS written in the same code? (a) UPZT (b) TZPU (c) RXNS (d) SYOT
- 38.If BALL is written as CBMM, how is MOON written in the same code? (a) OQQP (b) NPPO (c) LNNM (d) OPPN
- 39.If NEST is written as UTFO, how is SHIP written in the same code? (a) PIHS (b) OHGR (c) TIJQ (d) QJIT
- 40.If DOG is written as GRJ, how is SHIP written in the same code? (a) WLMT (b) UJKR (c) PEFM (d) VKLS
Answer key
- URHS
- HSKN
- GORF
- KZIP
- YLZG
- RATS
- VXQ
- NLLM
- HFM
- LLAB
- TAOB
- MVHG
- ORLM
- NOIL
- EPH
- FQI
- GSPH
- OFQ
- MTR
- MVHG
- PGR
- CDRJ
- JCPF
- PYGL
- NIAR
- NUS
- LLEB
- EKAC
- SRDM
- LMJN
- FFSU
- ITLO
- TZPU
- HPE
- LMJN
- QZHM
- SYOT
- NPPO
- QJIT
- VKLS
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