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 BOOK is written as YLLP, how is MILK written in the same code? (a) MQNO (b) NJML (c) NROP (d) OSPQ
- 2.If SHIP is written as UJKR, how is DESK written in the same code? (a) EFTL (b) BCQI (c) FGUM (d) GHVN
- 3.If PEN is written as NEP, how is FROG written in the same code? (a) GSPH (b) HPSG (c) GORF (d) FNQE
- 4.If JUMP is written as QFNK, how is LION written in the same code? (a) MJPO (b) PSMN (c) ORLM (d) NQKL
- 5.If TREE is written as USFF, how is STAR written in the same code? (a) UVCT (b) RSZQ (c) TUBS (d) SBUT
- 6.If GOLD is written as EMJB, how is TOYS written in the same code? (a) QLVP (b) RMWQ (c) VQAU (d) SNXR
- 7.If CAT is written as UBD, how is WIND written in the same code? (a) XJOE (b) EOJX (c) CMHV (d) DNIW
- 8.If RAIN is written as OJBS, how is SUN written in the same code? (a) MTR (b) TVO (c) NUS (d) OVT
- 9.If MILK is written as PLON, how is CAKE written in the same code? (a) ECMG (b) ZXHB (c) FDNH (d) GEOI
- 10.If RAIN is written as NIAR, how is STAR written in the same code? (a) RATS (b) TUBS (c) SBUT (d) QZSR
- 11.If DOG is written as FNC, how is KITE written in the same code? (a) DSHJ (b) FUJL (c) JHSD (d) ETIK
- 12.If BOAT is written as TAOB, how is COLD written in the same code? (a) DLOC (b) EMPD (c) CKNB (d) DPME
- 13.If JUMP is written as QFNK, how is SUN written in the same code? (a) GEL (b) IGN (c) TVO (d) HFM
- 14.If DOG is written as CNF, how is DRUM written in the same code? (a) ESVN (b) CQTL (c) BPSK (d) DRUM
- 15.If PARK is written as QBSL, how is GOLD written in the same code? (a) HPME (b) FNKC (c) EMPH (d) IQNF
- 16.If CAT is written as TAC, how is NEST written in the same code? (a) SRDM (b) OFTU (c) TSEN (d) UTFO
- 17.If LION is written as NOIL, how is KITE written in the same code? (a) ETIK (b) FUJL (c) LJUF (d) DSHJ
- 18.If WIND is written as FPKY, how is PARK written in the same code? (a) RCTM (b) IPYN (c) KRAP (d) MTCR
- 19.If GOLD is written as CKNF, how is RAIN written in the same code? (a) MHZQ (b) NIAR (c) QZHM (d) OJBS
- 20.If PEN is written as PGR, how is PARK written in the same code? (a) MTCR (b) IPYN (c) RCTM (d) KRAP
- 21.If BALL is written as YZOO, how is WIND written in the same code? (a) DRMW (b) ESNX (c) XJOE (d) CQLV
- 22.If TREE is written as GIVV, how is LION written in the same code? (a) PSMN (b) ORLM (c) NQKL (d) MJPO
- 23.If FROG is written as GSPH, how is KITE written in the same code? (a) MKVG (b) FUJL (c) JHSD (d) LJUF
- 24.If LAMP is written as ROCN, how is JUMP written in the same code? (a) PMUJ (b) NKSH (c) ROWL (d) LWOR
- 25.If DOG is written as GOD, how is DESK written in the same code? (a) EFTL (b) LTFE (c) KSED (d) JRDC
- 26.If SUN is written as UWP, how is TOYS written in the same code? (a) VQAU (b) WRBV (c) UPZT (d) RMWQ
- 27.If CAKE is written as EKAC, how is SUN written in the same code? (a) NUS (b) TVO (c) MTR (d) OVT
- 28.If BALL is written as LLAB, how is WIND written in the same code? (a) CMHV (b) XJOE (c) DNIW (d) EOJX
- 29.If BALL is written as LLAB, how is TOYS written in the same code? (a) UPZT (b) SYOT (c) RXNS (d) TZPU
- 30.If MOON is written as NLLM, how is RAIN written in the same code? (a) SBJO (b) JASN (c) HYQL (d) IZRM
- 31.If SUN is written as OVT, how is TOYS written in the same code? (a) SYOT (b) TZPU (c) RXNS (d) UPZT
- 32.If CAKE is written as DBLF, how is FISH written in the same code? (a) EHRG (b) HKUJ (c) GJTI (d) ITJG
- 33.If DOG is written as GOD, how is CAKE written in the same code? (a) EKAC (b) DJZB (c) FLBD (d) DBLF
- 34.If STAR is written as RSZQ, how is MILK written in the same code? (a) LHKJ (b) KGJI (c) NJML (d) MILK
- 35.If TREE is written as GIVV, how is CAKE written in the same code? (a) YAQW (b) DBLF (c) WYOU (d) XZPV
- 36.If STAR is written as RATS, how is RAIN written in the same code? (a) SBJO (b) MHZQ (c) NIAR (d) OJBS
- 37.If DESK is written as WVHP, how is TREE written in the same code? (a) FHUU (b) HJWW (c) USFF (d) GIVV
- 38.If MILK is written as NROP, how is WIND written in the same code? (a) CQLV (b) ESNX (c) XJOE (d) DRMW
- 39.If BOOK is written as ZMMI, how is MILK written in the same code? (a) OKNM (b) KGJI (c) LHKJ (d) JFIH
- 40.If BOAT is written as TAOB, how is BALL written in the same code? (a) MMBC (b) LLAB (c) KKZA (d) CBMM
Answer key
- NROP
- FGUM
- GORF
- ORLM
- TUBS
- RMWQ
- EOJX
- OVT
- FDNH
- RATS
- DSHJ
- DLOC
- HFM
- CQTL
- HPME
- TSEN
- ETIK
- MTCR
- MHZQ
- MTCR
- DRMW
- ORLM
- LJUF
- ROWL
- KSED
- VQAU
- NUS
- DNIW
- SYOT
- IZRM
- TZPU
- GJTI
- EKAC
- LHKJ
- XZPV
- NIAR
- GIVV
- DRMW
- KGJI
- LLAB
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