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 NEST is written as MVHG, how is BALL written in the same code? (a) CBMM (b) YZOO (c) XYNN (d) ZAPP
- 2.If FROG is written as GSPH, how is CAKE written in the same code? (a) ECMG (b) DBLF (c) BZJD (d) FLBD
- 3.If TREE is written as VTGG, how is MOON written in the same code? (a) OQQP (b) KMML (c) PRRQ (d) NPPO
- 4.If STAR is written as RATS, how is GOLD written in the same code? (a) DLOG (b) HPME (c) CKNF (d) EMPH
- 5.If JUMP is written as PMUJ, how is MOON written in the same code? (a) NPPO (b) MNNL (c) NOOM (d) OPPN
- 6.If BOOK is written as LPPC, how is RAIN written in the same code? (a) NIAR (b) OJBS (c) SBJO (d) MHZQ
- 7.If STAR is written as HGZI, how is DRUM written in the same code? (a) VHEM (b) ESVN (c) WIFN (d) XJGO
- 8.If DOG is written as HPE, how is BELL written in the same code? (a) CFMM (b) LLEB (c) KKDA (d) MMFC
- 9.If NEST is written as TSEN, how is MOON written in the same code? (a) NOOM (b) OPPN (c) NPPO (d) MNNL
- 10.If SHIP is written as PIHS, how is KITE written in the same code? (a) LJUF (b) ETIK (c) FUJL (d) DSHJ
- 11.If DRUM is written as MURD, how is RAIN written in the same code? (a) OJBS (b) MHZQ (c) NIAR (d) SBJO
- 12.If MOON is written as PQQO, how is FISH written in the same code? (a) FQGD (b) HSIF (c) JUKH (d) HKUJ
- 13.If BOOK is written as LPPC, how is DRUM written in the same code? (a) ESVN (b) NVSE (c) LTQC (d) MURD
- 14.If CAT is written as DBU, how is FROG written in the same code? (a) HTQI (b) GSPH (c) EQNF (d) HPSG
- 15.If STAR is written as HGZI, how is LION written in the same code? (a) ORLM (b) PSMN (c) NQKL (d) MJPO
- 16.If JUMP is written as PMUJ, how is DRUM written in the same code? (a) ESVN (b) LTQC (c) MURD (d) NVSE
- 17.If SHIP is written as RGHO, how is PEN written in the same code? (a) QFO (b) NCL (c) PEN (d) ODM
- 18.If CAKE is written as EKAC, how is BOAT written in the same code? (a) UBPC (b) CPBU (c) TAOB (d) SZNA
- 19.If STAR is written as SBUT, how is TREE written in the same code? (a) USFF (b) FFSU (c) EERT (d) DDQS
- 20.If TREE is written as WUHH, how is DESK written in the same code? (a) HIWO (b) FGUM (c) GHVN (d) ABPH
- 21.If TOYS is written as GLBH, how is HAND written in the same code? (a) SZMW (b) TANX (c) RYLV (d) IBOE
- 22.If FISH is written as URHS, how is FROG written in the same code? (a) UILT (b) GSPH (c) VJMU (d) THKS
- 23.If SUN is written as OVT, how is JUMP written in the same code? (a) QNVK (b) PMUJ (c) OLTI (d) KVNQ
- 24.If BALL is written as KKZA, how is RAIN written in the same code? (a) NIAR (b) OJBS (c) MHZQ (d) QZHM
- 25.If HAND is written as EOBI, how is CAKE written in the same code? (a) DJZB (b) EKAC (c) FLBD (d) DBLF
- 26.If BOAT is written as ERDW, how is DOG written in the same code? (a) HSK (b) FQI (c) GRJ (d) ALD
- 27.If STAR is written as TUBS, how is KITE written in the same code? (a) LJUF (b) MKVG (c) JHSD (d) FUJL
- 28.If BOAT is written as TAOB, how is STAR written in the same code? (a) QZSR (b) SBUT (c) TUBS (d) RATS
- 29.If TREE is written as EERT, how is CAKE written in the same code? (a) DBLF (b) DJZB (c) EKAC (d) FLBD
- 30.If COLD is written as DLOC, how is MOON written in the same code? (a) OPPN (b) NOOM (c) MNNL (d) NPPO
- 31.If LAMP is written as OZNK, how is COLD written in the same code? (a) XLOW (b) YMPX (c) WKNV (d) DPME
- 32.If JUMP is written as QFNK, how is HAND written in the same code? (a) TANX (b) RYLV (c) SZMW (d) IBOE
- 33.If TREE is written as FFSU, how is BELL written in the same code? (a) KKDA (b) CFMM (c) MMFC (d) LLEB
- 34.If DRUM is written as LTQC, how is FISH written in the same code? (a) HSIF (b) EHRG (c) ITJG (d) GRHE
- 35.If PARK is written as OZQJ, how is TOYS written in the same code? (a) UPZT (b) TOYS (c) SNXR (d) RMWQ
- 36.If SUN is written as PWU, how is CAKE written in the same code? (a) EKAC (b) CIYA (c) ECMG (d) GMCE
- 37.If BALL is written as AZKK, how is CAT written in the same code? (a) CAT (b) DBU (c) BZS (d) AYR
- 38.If FISH is written as EHRG, how is RAIN written in the same code? (a) RAIN (b) QZHM (c) PYGL (d) SBJO
- 39.If LAMP is written as JYKN, how is FISH written in the same code? (a) CFPE (b) EHRG (c) HKUJ (d) DGQF
- 40.If MOON is written as NLLM, how is DRUM written in the same code? (a) XJGO (b) WIFN (c) VHEM (d) ESVN
Answer key
- YZOO
- DBLF
- OQQP
- DLOG
- NOOM
- OJBS
- WIFN
- MMFC
- NOOM
- ETIK
- NIAR
- JUKH
- NVSE
- GSPH
- ORLM
- MURD
- ODM
- TAOB
- FFSU
- GHVN
- SZMW
- UILT
- QNVK
- MHZQ
- FLBD
- GRJ
- LJUF
- RATS
- EKAC
- NOOM
- XLOW
- SZMW
- MMFC
- GRHE
- SNXR
- GMCE
- BZS
- QZHM
- DGQF
- WIFN
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