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 TOYS is written as GLBH, how is SUN written in the same code? (a) GEL (b) IGN (c) TVO (d) HFM
- 2.If BELL is written as KKDA, how is KITE written in the same code? (a) ETIK (b) JHSD (c) FUJL (d) DSHJ
- 3.If RAIN is written as PKCT, how is FISH written in the same code? (a) HSIF (b) HKUJ (c) FQGD (d) JUKH
- 4.If BALL is written as AZKK, how is SHIP written in the same code? (a) RGHO (b) QFGN (c) SHIP (d) TIJQ
- 5.If MOON is written as KMML, how is HAND written in the same code? (a) GZMC (b) JCPF (c) FYLB (d) EXKA
- 6.If DESK is written as KSED, how is TOYS written in the same code? (a) RXNS (b) UPZT (c) SYOT (d) TZPU
- 7.If BALL is written as YZOO, how is HAND written in the same code? (a) TANX (b) RYLV (c) IBOE (d) SZMW
- 8.If LION is written as MJPO, how is CAKE written in the same code? (a) ECMG (b) DBLF (c) FLBD (d) BZJD
- 9.If DESK is written as MUGF, how is FISH written in the same code? (a) JUKH (b) HSIF (c) FQGD (d) HKUJ
- 10.If JUMP is written as QFNK, how is BOAT written in the same code? (a) CPBU (b) ZMAH (c) XKYF (d) YLZG
- 11.If PARK is written as NYPI, how is BELL written in the same code? (a) YBII (b) ADKK (c) ZCJJ (d) DGNN
- 12.If PEN is written as MDO, how is TREE written in the same code? (a) EERT (b) SQDD (c) FFSU (d) DDQS
- 13.If BOAT is written as TAOB, how is MOON written in the same code? (a) NOOM (b) NPPO (c) MNNL (d) OPPN
- 14.If NEST is written as TSEN, how is PEN written in the same code? (a) NEP (b) OFQ (c) QFO (d) MDO
- 15.If COLD is written as BNKC, how is FISH written in the same code? (a) FISH (b) GJTI (c) EHRG (d) DGQF
- 16.If SUN is written as VXQ, how is STAR written in the same code? (a) WXEV (b) PQXO (c) UVCT (d) VWDU
- 17.If COLD is written as CKNB, how is STAR written in the same code? (a) SBUT (b) RATS (c) QZSR (d) RSZQ
- 18.If BOAT is written as ZMYR, how is NEST written in the same code? (a) MDRS (b) PGUV (c) LCQR (d) KBPQ
- 19.If LION is written as ORLM, how is BOOK written in the same code? (a) ZMMQ (b) XKKO (c) YLLP (d) CPPL
- 20.If CAKE is written as FLBD, how is WIND written in the same code? (a) EOJX (b) DNIW (c) CMHV (d) XJOE
- 21.If PARK is written as KRAP, how is FISH written in the same code? (a) GRHE (b) HSIF (c) ITJG (d) GJTI
- 22.If DESK is written as JRDC, how is DOG written in the same code? (a) CNF (b) FNC (c) HPE (d) GOD
- 23.If CAT is written as VCE, how is PARK written in the same code? (a) RCTM (b) MTCR (c) KRAP (d) IPYN
- 24.If TOYS is written as GLBH, how is DESK written in the same code? (a) XWIQ (b) EFTL (c) VUGO (d) WVHP
- 25.If DRUM is written as OWTF, how is TREE written in the same code? (a) VTGG (b) EERT (c) CCPR (d) GGTV
- 26.If CAT is written as VCE, how is SHIP written in the same code? (a) PIHS (b) UJKR (c) NGFQ (d) RKJU
- 27.If WIND is written as DNIW, how is PARK written in the same code? (a) QBSL (b) LSBQ (c) KRAP (d) JQZO
- 28.If LION is written as NOIL, how is DESK written in the same code? (a) EFTL (b) JRDC (c) KSED (d) LTFE
- 29.If PARK is written as KZIP, how is BOOK written in the same code? (a) ZMMQ (b) YLLP (c) XKKO (d) CPPL
- 30.If BALL is written as NNCD, how is STAR written in the same code? (a) RATS (b) PYRQ (c) TCVU (d) UVCT
- 31.If SHIP is written as HSRK, how is MOON written in the same code? (a) MKKL (b) NLLM (c) NPPO (d) OMMN
- 32.If DESK is written as EFTL, how is BOOK written in the same code? (a) DQQM (b) LPPC (c) CPPL (d) ANNJ
- 33.If DOG is written as HPE, how is TOYS written in the same code? (a) TZPU (b) UPZT (c) RXNS (d) SYOT
- 34.If CAT is written as TAC, how is FROG written in the same code? (a) HPSG (b) GSPH (c) FNQE (d) GORF
- 35.If HAND is written as JCPF, how is RAIN written in the same code? (a) UDLQ (b) PYGL (c) TCKP (d) SBJO
- 36.If SUN is written as PWU, how is BELL written in the same code? (a) NNGD (b) DGNN (c) LLEB (d) JJCZ
- 37.If DESK is written as JRDC, how is COLD written in the same code? (a) DLOC (b) CKNB (c) EMPD (d) BNKC
- 38.If RAIN is written as MHZQ, how is LION written in the same code? (a) NOIL (b) MNHK (c) KHNM (d) OPJM
- 39.If SHIP is written as HSRK, how is CAKE written in the same code? (a) XZPV (b) YAQW (c) DBLF (d) WYOU
- 40.If KITE is written as IGRC, how is CAT written in the same code? (a) BZS (b) ECV (c) AYR (d) ZXQ
Answer key
- HFM
- DSHJ
- JUKH
- RGHO
- FYLB
- SYOT
- SZMW
- DBLF
- JUKH
- YLZG
- ZCJJ
- DDQS
- NOOM
- NEP
- EHRG
- VWDU
- QZSR
- LCQR
- YLLP
- EOJX
- HSIF
- FNC
- MTCR
- WVHP
- GGTV
- RKJU
- KRAP
- KSED
- YLLP
- TCVU
- NLLM
- CPPL
- TZPU
- GORF
- TCKP
- NNGD
- CKNB
- MNHK
- XZPV
- AYR
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