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 TREE is written as FFSU, how is FROG written in the same code? (a) GSPH (b) FNQE (c) HPSG (d) GORF
- 2.If SHIP is written as RKJU, how is PARK written in the same code? (a) IPYN (b) MTCR (c) KRAP (d) RCTM
- 3.If DESK is written as KSED, how is FROG written in the same code? (a) HPSG (b) GORF (c) FNQE (d) GSPH
- 4.If KITE is written as JHSD, how is SHIP written in the same code? (a) QFGN (b) TIJQ (c) SHIP (d) RGHO
- 5.If DOG is written as GOD, how is HAND written in the same code? (a) CMZG (b) IBOE (c) EOBI (d) DNAH
- 6.If FROG is written as GORF, how is NEST written in the same code? (a) OFTU (b) TSEN (c) SRDM (d) UTFO
- 7.If FROG is written as UILT, how is BOOK written in the same code? (a) CPPL (b) ZMMQ (c) XKKO (d) YLLP
- 8.If FISH is written as ILVK, how is JUMP written in the same code? (a) GRJM (b) NYQT (c) LWOR (d) MXPS
- 9.If DRUM is written as FTWO, how is WIND written in the same code? (a) XJOE (b) YKPF (c) ZLQG (d) UGLB
- 10.If LAMP is written as PMAL, how is BOAT written in the same code? (a) UBPC (b) SZNA (c) TAOB (d) CPBU
- 11.If MOON is written as PQQO, how is GOLD written in the same code? (a) BJME (b) IQNF (c) DLOG (d) FNQI
- 12.If LAMP is written as OLZK, how is BALL written in the same code? (a) MMBC (b) LLAB (c) AZKK (d) KKZA
- 13.If SHIP is written as VKLS, how is PEN written in the same code? (a) MBK (b) TIR (c) RGP (d) SHQ
- 14.If DOG is written as WLT, how is FROG written in the same code? (a) GSPH (b) UILT (c) THKS (d) VJMU
- 15.If DESK is written as MUGF, how is CAT written in the same code? (a) TAC (b) RYA (c) VCE (d) ECV
- 16.If FROG is written as UILT, how is CAT written in the same code? (a) XZG (b) YAH (c) DBU (d) WYF
- 17.If BOOK is written as LPPC, how is FISH written in the same code? (a) ITJG (b) GJTI (c) GRHE (d) HSIF
- 18.If PEN is written as NEP, how is GOLD written in the same code? (a) DLOG (b) HPME (c) EMPH (d) CKNF
- 19.If RAIN is written as OJBS, how is WIND written in the same code? (a) DNIW (b) EOJX (c) CMHV (d) XJOE
- 20.If TREE is written as EERT, how is BELL written in the same code? (a) CFMM (b) KKDA (c) MMFC (d) LLEB
- 21.If TOYS is written as GLBH, how is JUMP written in the same code? (a) QFNK (b) KVNQ (c) RGOL (d) PEMJ
- 22.If MILK is written as NROP, how is SUN written in the same code? (a) HFM (b) IGN (c) GEL (d) TVO
- 23.If COLD is written as AMJB, how is DRUM written in the same code? (a) FTWO (b) BPSK (c) AORJ (d) CQTL
- 24.If MOON is written as NOOM, how is FISH written in the same code? (a) GJTI (b) ITJG (c) HSIF (d) GRHE
- 25.If NEST is written as TSEN, how is KITE written in the same code? (a) ETIK (b) FUJL (c) DSHJ (d) LJUF
- 26.If GOLD is written as EMJB, how is RAIN written in the same code? (a) OXFK (b) QZHM (c) TCKP (d) PYGL
- 27.If FISH is written as ITJG, how is STAR written in the same code? (a) TUBS (b) QZSR (c) RATS (d) SBUT
- 28.If CAT is written as VCE, how is STAR written in the same code? (a) PYRQ (b) RATS (c) UVCT (d) TCVU
- 29.If BELL is written as LLEB, how is FROG written in the same code? (a) GORF (b) FNQE (c) GSPH (d) HPSG
- 30.If FISH is written as ITJG, how is CAT written in the same code? (a) TAC (b) DBU (c) SZB (d) UBD
- 31.If DOG is written as CNF, how is FISH written in the same code? (a) FISH (b) GJTI (c) DGQF (d) EHRG
- 32.If COLD is written as XLOW, how is RAIN written in the same code? (a) IZRM (b) SBJO (c) JASN (d) HYQL
- 33.If STAR is written as SBUT, how is DOG written in the same code? (a) EPH (b) GOD (c) FNC (d) HPE
- 34.If BELL is written as MMFC, how is PARK written in the same code? (a) KRAP (b) JQZO (c) QBSL (d) LSBQ
- 35.If COLD is written as CKNB, how is DRUM written in the same code? (a) CQTL (b) LTQC (c) MURD (d) NVSE
- 36.If BELL is written as MMFC, how is LAMP written in the same code? (a) QNBM (b) MBNQ (c) PMAL (d) OLZK
- 37.If BALL is written as EDOO, how is BOAT written in the same code? (a) FSEX (b) YLXQ (c) ERDW (d) DQCV
- 38.If CAT is written as TAC, how is BALL written in the same code? (a) MMBC (b) LLAB (c) KKZA (d) CBMM
- 39.If NEST is written as VUGP, how is WIND written in the same code? (a) BLGU (b) FPKY (c) DNIW (d) YKPF
- 40.If LAMP is written as KZLO, how is FROG written in the same code? (a) DPME (b) EQNF (c) GSPH (d) FROG
Answer key
- HPSG
- MTCR
- GORF
- RGHO
- DNAH
- TSEN
- YLLP
- MXPS
- YKPF
- TAOB
- FNQI
- KKZA
- SHQ
- UILT
- VCE
- XZG
- ITJG
- DLOG
- EOJX
- LLEB
- QFNK
- HFM
- BPSK
- HSIF
- ETIK
- PYGL
- SBUT
- TCVU
- GORF
- UBD
- EHRG
- IZRM
- HPE
- LSBQ
- LTQC
- QNBM
- ERDW
- LLAB
- FPKY
- EQNF
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