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 KITE is written as ETIK, how is GOLD written in the same code? (a) EMPH (b) CKNF (c) HPME (d) DLOG
- 2.If CAKE is written as FLBD, how is KITE written in the same code? (a) ETIK (b) FUJL (c) LJUF (d) DSHJ
- 3.If BALL is written as YZOO, how is FROG written in the same code? (a) UILT (b) VJMU (c) THKS (d) GSPH
- 4.If LAMP is written as QNBM, how is BELL written in the same code? (a) MMFC (b) LLEB (c) CFMM (d) KKDA
- 5.If CAKE is written as DJZB, how is SUN written in the same code? (a) MTR (b) OVT (c) NUS (d) RTM
- 6.If CAKE is written as EKAC, how is LION written in the same code? (a) OPJM (b) NOIL (c) MNHK (d) MJPO
- 7.If MILK is written as LMJN, how is BOOK written in the same code? (a) KOOB (b) JNNA (c) CPPL (d) LPPC
- 8.If TREE is written as USFF, how is DRUM written in the same code? (a) FTWO (b) ESVN (c) NVSE (d) CQTL
- 9.If PEN is written as NEP, how is FROG written in the same code? (a) HPSG (b) GSPH (c) GORF (d) FNQE
- 10.If BOAT is written as YLZG, how is MILK written in the same code? (a) OSPQ (b) MQNO (c) NROP (d) NJML
- 11.If CAT is written as FDW, how is GOLD written in the same code? (a) DLIA (b) KSPH (c) IQNF (d) JROG
- 12.If BOOK is written as KOOB, how is DRUM written in the same code? (a) NVSE (b) LTQC (c) ESVN (d) MURD
- 13.If FROG is written as UILT, how is JUMP written in the same code? (a) RGOL (b) PEMJ (c) KVNQ (d) QFNK
- 14.If KITE is written as ETIK, how is MOON written in the same code? (a) MNNL (b) OPPN (c) NPPO (d) NOOM
- 15.If FROG is written as DPME, how is JUMP written in the same code? (a) ITLO (b) LWOR (c) GRJM (d) HSKN
- 16.If BOAT is written as YLZG, how is PEN written in the same code? (a) JUL (b) QFO (c) KVM (d) LWN
- 17.If JUMP is written as ITLO, how is STAR written in the same code? (a) RSZQ (b) TUBS (c) QRYP (d) STAR
- 18.If LION is written as OLRQ, how is BELL written in the same code? (a) FIPP (b) YBII (c) DGNN (d) EHOO
- 19.If SUN is written as UWP, how is KITE written in the same code? (a) LJUF (b) IGRC (c) NLWH (d) MKVG
- 20.If BOAT is written as SZNA, how is FISH written in the same code? (a) GRHE (b) EHRG (c) HSIF (d) ITJG
- 21.If GOLD is written as DLOG, how is JUMP written in the same code? (a) KVNQ (b) PMUJ (c) OLTI (d) QNVK
- 22.If SHIP is written as RGHO, how is FROG written in the same code? (a) GSPH (b) DPME (c) FROG (d) EQNF
- 23.If BELL is written as LLEB, how is SUN written in the same code? (a) TVO (b) OVT (c) MTR (d) NUS
- 24.If JUMP is written as QFNK, how is BOAT written in the same code? (a) YLZG (b) CPBU (c) XKYF (d) ZMAH
- 25.If BOOK is written as LPPC, how is RAIN written in the same code? (a) MHZQ (b) NIAR (c) OJBS (d) SBJO
- 26.If FISH is written as HSIF, how is STAR written in the same code? (a) TUBS (b) SBUT (c) RATS (d) QZSR
- 27.If RAIN is written as UDLQ, how is KITE written in the same code? (a) OMXI (b) HFQB (c) NLWH (d) MKVG
- 28.If SUN is written as NUS, how is STAR written in the same code? (a) RATS (b) QZSR (c) TUBS (d) SBUT
- 29.If GOLD is written as DLOG, how is CAT written in the same code? (a) SZB (b) DBU (c) UBD (d) TAC
- 30.If GOLD is written as IQNF, how is FISH written in the same code? (a) GJTI (b) ILVK (c) HKUJ (d) DGQF
- 31.If MILK is written as LHKJ, how is BALL written in the same code? (a) CBMM (b) AZKK (c) ZYJJ (d) BALL
- 32.If LION is written as OLRQ, how is LAMP written in the same code? (a) PEQT (b) ODPS (c) NCOR (d) IXJM
- 33.If LAMP is written as OZNK, how is SHIP written in the same code? (a) ITSL (b) GRQJ (c) HSRK (d) TIJQ
- 34.If FISH is written as HSIF, how is CAKE written in the same code? (a) DJZB (b) FLBD (c) EKAC (d) DBLF
- 35.If CAT is written as TAC, how is FROG written in the same code? (a) HPSG (b) GSPH (c) GORF (d) FNQE
- 36.If CAT is written as TAC, how is RAIN written in the same code? (a) SBJO (b) NIAR (c) OJBS (d) MHZQ
- 37.If PARK is written as SDUN, how is WIND written in the same code? (a) YKPF (b) ZLQG (c) AMRH (d) TFKA
- 38.If TREE is written as FFSU, how is DESK written in the same code? (a) JRDC (b) LTFE (c) EFTL (d) KSED
- 39.If WIND is written as EOJX, how is BOAT written in the same code? (a) SZNA (b) UBPC (c) TAOB (d) CPBU
- 40.If FROG is written as GORF, how is MOON written in the same code? (a) NPPO (b) NOOM (c) OPPN (d) MNNL
Answer key
- DLOG
- FUJL
- UILT
- MMFC
- MTR
- NOIL
- LPPC
- ESVN
- GORF
- NROP
- JROG
- MURD
- QFNK
- NOOM
- HSKN
- KVM
- RSZQ
- EHOO
- MKVG
- GRHE
- PMUJ
- EQNF
- NUS
- YLZG
- OJBS
- RATS
- NLWH
- RATS
- TAC
- HKUJ
- AZKK
- ODPS
- HSRK
- EKAC
- GORF
- NIAR
- ZLQG
- LTFE
- UBPC
- NOOM
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