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 HAND is written as EOBI, how is STAR written in the same code? (a) SBUT (b) RATS (c) QZSR (d) TUBS
- 2.If PARK is written as KZIP, how is GOLD written in the same code? (a) TLOW (b) SKNV (c) HPME (d) UMPX
- 3.If FISH is written as EHRG, how is KITE written in the same code? (a) JHSD (b) LJUF (c) KITE (d) IGRC
- 4.If DOG is written as CNF, how is FROG written in the same code? (a) EQNF (b) DPME (c) GSPH (d) FROG
- 5.If STAR is written as QZSR, how is LION written in the same code? (a) NOIL (b) OPJM (c) MNHK (d) KHNM
- 6.If LION is written as NOIL, how is SHIP written in the same code? (a) QJIT (b) TIJQ (c) PIHS (d) OHGR
- 7.If DESK is written as EFTL, how is SUN written in the same code? (a) OVT (b) RTM (c) UWP (d) TVO
- 8.If DRUM is written as NVSE, how is GOLD written in the same code? (a) HPME (b) DLOG (c) CKNF (d) EMPH
- 9.If STAR is written as UVCT, how is PARK written in the same code? (a) QBSL (b) RCTM (c) NYPI (d) SDUN
- 10.If TREE is written as EERT, how is PARK written in the same code? (a) QBSL (b) KRAP (c) JQZO (d) LSBQ
- 11.If HAND is written as FPCJ, how is TOYS written in the same code? (a) VQAU (b) UAQV (c) SYOT (d) QWMR
- 12.If STAR is written as UVCT, how is MILK written in the same code? (a) PLON (b) KGJI (c) OKNM (d) NJML
- 13.If MILK is written as NROP, how is CAT written in the same code? (a) YAH (b) DBU (c) WYF (d) XZG
- 14.If DESK is written as WVHP, how is DOG written in the same code? (a) WLT (b) EPH (c) VKS (d) XMU
- 15.If NEST is written as MVHG, how is STAR written in the same code? (a) TUBS (b) HGZI (c) GFYH (d) IHAJ
- 16.If KITE is written as DSHJ, how is WIND written in the same code? (a) EOJX (b) CMHV (c) DNIW (d) VHMC
- 17.If PARK is written as KRAP, how is FROG written in the same code? (a) GSPH (b) HPSG (c) FNQE (d) GORF
- 18.If TOYS is written as RXNS, how is DOG written in the same code? (a) HPE (b) CNF (c) FNC (d) GOD
- 19.If FISH is written as HKUJ, how is BALL written in the same code? (a) EDOO (b) ZYJJ (c) DCNN (d) CBMM
- 20.If PEN is written as NCL, how is FROG written in the same code? (a) HTQI (b) COLD (c) EQNF (d) DPME
- 21.If BOAT is written as SZNA, how is NEST written in the same code? (a) TSEN (b) UTFO (c) SRDM (d) MDRS
- 22.If LION is written as ORLM, how is WIND written in the same code? (a) DRMW (b) ESNX (c) XJOE (d) CQLV
- 23.If RAIN is written as UDLQ, how is TOYS written in the same code? (a) XSCW (b) WRBV (c) VQAU (d) QLVP
- 24.If MILK is written as NROP, how is TREE written in the same code? (a) GIVV (b) USFF (c) HJWW (d) FHUU
- 25.If BELL is written as ADKK, how is HAND written in the same code? (a) GZMC (b) IBOE (c) HAND (d) FYLB
- 26.If DOG is written as EPH, how is FROG written in the same code? (a) HTQI (b) EQNF (c) HPSG (d) GSPH
- 27.If FROG is written as HTQI, how is CAT written in the same code? (a) FDW (b) AYR (c) ECV (d) DBU
- 28.If CAT is written as XZG, how is TOYS written in the same code? (a) HMCI (b) UPZT (c) GLBH (d) FKAG
- 29.If GOLD is written as CKNF, how is PARK written in the same code? (a) JQZO (b) OZQJ (c) LSBQ (d) KRAP
- 30.If MILK is written as KLIM, how is TREE written in the same code? (a) DDQS (b) FFSU (c) USFF (d) EERT
- 31.If CAT is written as XZG, how is BOOK written in the same code? (a) YLLP (b) XKKO (c) ZMMQ (d) CPPL
- 32.If BELL is written as CFMM, how is COLD written in the same code? (a) EMPD (b) BNKC (c) DPME (d) EQNF
- 33.If DESK is written as WVHP, how is BOAT written in the same code? (a) ZMAH (b) XKYF (c) CPBU (d) YLZG
- 34.If DESK is written as GHVN, how is LION written in the same code? (a) NKQP (b) PMSR (c) IFLK (d) OLRQ
- 35.If WIND is written as DRMW, how is BOOK written in the same code? (a) CPPL (b) YLLP (c) ZMMQ (d) XKKO
- 36.If NEST is written as OFTU, how is SHIP written in the same code? (a) RGHO (b) TIJQ (c) UJKR (d) QJIT
- 37.If WIND is written as DNIW, how is DRUM written in the same code? (a) ESVN (b) LTQC (c) MURD (d) NVSE
- 38.If KITE is written as PRGV, how is PARK written in the same code? (a) JYHO (b) KZIP (c) LAJQ (d) QBSL
- 39.If PARK is written as NYPI, how is BELL written in the same code? (a) ADKK (b) ZCJJ (c) DGNN (d) YBII
- 40.If BALL is written as NNCD, how is NEST written in the same code? (a) RQCL (b) TSEN (c) VUGP (d) PGUV
Answer key
- SBUT
- TLOW
- JHSD
- EQNF
- MNHK
- PIHS
- TVO
- EMPH
- RCTM
- KRAP
- UAQV
- OKNM
- XZG
- WLT
- HGZI
- CMHV
- GORF
- FNC
- DCNN
- DPME
- SRDM
- DRMW
- WRBV
- GIVV
- GZMC
- GSPH
- ECV
- GLBH
- JQZO
- EERT
- YLLP
- DPME
- YLZG
- OLRQ
- YLLP
- TIJQ
- MURD
- KZIP
- ZCJJ
- VUGP
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