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 DNAH, how is RAIN written in the same code? (a) SBJO (b) NIAR (c) MHZQ (d) OJBS
- 2.If LION is written as OPJM, how is JUMP written in the same code? (a) OLTI (b) PMUJ (c) QNVK (d) KVNQ
- 3.If DESK is written as CDRJ, how is TREE written in the same code? (a) SQDD (b) USFF (c) RPCC (d) TREE
- 4.If WIND is written as FPKY, how is TOYS written in the same code? (a) SYOT (b) UAQV (c) VQAU (d) QWMR
- 5.If FISH is written as GRHE, how is BOAT written in the same code? (a) TAOB (b) UBPC (c) SZNA (d) ANZS
- 6.If CAT is written as BZS, how is BOOK written in the same code? (a) ZMMI (b) BOOK (c) ANNJ (d) CPPL
- 7.If CAT is written as XZG, how is PARK written in the same code? (a) QBSL (b) LAJQ (c) JYHO (d) KZIP
- 8.If STAR is written as RATS, how is BOAT written in the same code? (a) UBPC (b) SZNA (c) TAOB (d) CPBU
- 9.If MOON is written as PQQO, how is TOYS written in the same code? (a) QWMR (b) SYOT (c) VQAU (d) UAQV
- 10.If STAR is written as HGZI, how is LAMP written in the same code? (a) OZNK (b) NYMJ (c) PAOL (d) MBNQ
- 11.If JUMP is written as KVNQ, how is SHIP written in the same code? (a) RGHO (b) UJKR (c) TIJQ (d) QJIT
- 12.If DESK is written as LTFE, how is HAND written in the same code? (a) IBOE (b) CMZG (c) DNAH (d) EOBI
- 13.If DRUM is written as NVSE, how is PEN written in the same code? (a) QFO (b) MDO (c) NEP (d) OFQ
- 14.If BOOK is written as ERRN, how is HAND written in the same code? (a) KDQG (b) LERH (c) EXKA (d) JCPF
- 15.If COLD is written as EMPD, how is DESK written in the same code? (a) KSED (b) EFTL (c) JRDC (d) LTFE
- 16.If BALL is written as LLAB, how is HAND written in the same code? (a) DNAH (b) EOBI (c) CMZG (d) IBOE
- 17.If COLD is written as XLOW, how is BOAT written in the same code? (a) ZMAH (b) YLZG (c) CPBU (d) XKYF
- 18.If STAR is written as HGZI, how is DOG written in the same code? (a) WLT (b) EPH (c) XMU (d) VKS
- 19.If JUMP is written as PMUJ, how is GOLD written in the same code? (a) EMPH (b) HPME (c) DLOG (d) CKNF
- 20.If BELL is written as EHOO, how is GOLD written in the same code? (a) KSPH (b) IQNF (c) DLIA (d) JROG
- 21.If PEN is written as NCL, how is DOG written in the same code? (a) CNF (b) ALD (c) BME (d) FQI
- 22.If BOAT is written as YLZG, how is FISH written in the same code? (a) GJTI (b) TQGR (c) URHS (d) VSIT
- 23.If JUMP is written as OLTI, how is DOG written in the same code? (a) GOD (b) HPE (c) CNF (d) FNC
- 24.If FROG is written as UILT, how is SUN written in the same code? (a) TVO (b) GEL (c) HFM (d) IGN
- 25.If BELL is written as YVOO, how is PARK written in the same code? (a) KZIP (b) QBSL (c) LAJQ (d) JYHO
- 26.If PEN is written as MDO, how is TOYS written in the same code? (a) RXNS (b) TZPU (c) SNXR (d) SYOT
- 27.If CAT is written as TAC, how is WIND written in the same code? (a) DNIW (b) XJOE (c) EOJX (d) CMHV
- 28.If LAMP is written as ODPS, how is MILK written in the same code? (a) OKNM (b) JFIH (c) PLON (d) QMPO
- 29.If KITE is written as LJUF, how is DRUM written in the same code? (a) NVSE (b) ESVN (c) FTWO (d) CQTL
- 30.If FISH is written as EHRG, how is MOON written in the same code? (a) LNNM (b) KMML (c) MOON (d) NPPO
- 31.If CAT is written as DBU, how is TREE written in the same code? (a) SQDD (b) VTGG (c) USFF (d) FFSU
- 32.If TREE is written as GIVV, how is BALL written in the same code? (a) CBMM (b) YZOO (c) ZAPP (d) XYNN
- 33.If RAIN is written as TCKP, how is CAT written in the same code? (a) ECV (b) AYR (c) DBU (d) FDW
- 34.If PEN is written as QFO, how is DRUM written in the same code? (a) FTWO (b) ESVN (c) CQTL (d) NVSE
- 35.If SHIP is written as QFGN, how is COLD written in the same code? (a) BNKC (b) ZLIA (c) EQNF (d) AMJB
- 36.If MILK is written as KLIM, how is PARK written in the same code? (a) KRAP (b) QBSL (c) LSBQ (d) JQZO
- 37.If DRUM is written as OWTF, how is BOOK written in the same code? (a) DQQM (b) KOOB (c) MQQD (d) IMMZ
- 38.If DESK is written as WVHP, how is FISH written in the same code? (a) VSIT (b) GJTI (c) TQGR (d) URHS
- 39.If STAR is written as SBUT, how is SUN written in the same code? (a) MTR (b) TVO (c) NUS (d) OVT
- 40.If LAMP is written as NCOR, how is CAT written in the same code? (a) FDW (b) AYR (c) DBU (d) ECV
Answer key
- NIAR
- QNVK
- SQDD
- UAQV
- SZNA
- ANNJ
- KZIP
- TAOB
- UAQV
- OZNK
- TIJQ
- EOBI
- OFQ
- KDQG
- LTFE
- DNAH
- YLZG
- WLT
- DLOG
- JROG
- BME
- URHS
- FNC
- HFM
- KZIP
- RXNS
- DNIW
- PLON
- ESVN
- LNNM
- USFF
- YZOO
- ECV
- ESVN
- AMJB
- KRAP
- MQQD
- URHS
- OVT
- ECV
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