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 TOYS is written as WRBV, how is FROG written in the same code? (a) IURJ (b) JVSK (c) HTQI (d) COLD
- 2.If GOLD is written as CKNF, how is BOAT written in the same code? (a) UBPC (b) ANZS (c) SZNA (d) TAOB
- 3.If DESK is written as KSED, how is KITE written in the same code? (a) FUJL (b) DSHJ (c) LJUF (d) ETIK
- 4.If TREE is written as DDQS, how is MILK written in the same code? (a) LMJN (b) JKHL (c) KLIM (d) LHKJ
- 5.If KITE is written as GVKM, how is CAT written in the same code? (a) VCE (b) TAC (c) ECV (d) RYA
- 6.If BALL is written as YZOO, how is TREE written in the same code? (a) USFF (b) GIVV (c) HJWW (d) FHUU
- 7.If DESK is written as JRDC, how is BOOK written in the same code? (a) LPPC (b) KOOB (c) JNNA (d) ANNJ
- 8.If PEN is written as KVM, how is CAT written in the same code? (a) DBU (b) WYF (c) YAH (d) XZG
- 9.If CAT is written as UBD, how is COLD written in the same code? (a) CKNB (b) DPME (c) EMPD (d) DLOC
- 10.If CAT is written as XZG, how is BOOK written in the same code? (a) XKKO (b) YLLP (c) CPPL (d) ZMMQ
- 11.If BOAT is written as CPBU, how is DOG written in the same code? (a) EPH (b) HPE (c) FQI (d) CNF
- 12.If DOG is written as WLT, how is BOAT written in the same code? (a) YLZG (b) XKYF (c) ZMAH (d) CPBU
- 13.If TOYS is written as GLBH, how is BALL written in the same code? (a) YZOO (b) CBMM (c) ZAPP (d) XYNN
- 14.If BOAT is written as CPBU, how is MOON written in the same code? (a) OPPN (b) OQQP (c) LNNM (d) NPPO
- 15.If LION is written as KHNM, how is MILK written in the same code? (a) NJML (b) LHKJ (c) MILK (d) KGJI
- 16.If TOYS is written as WRBV, how is LION written in the same code? (a) PMSR (b) OLRQ (c) IFLK (d) NKQP
- 17.If MOON is written as NOOM, how is GOLD written in the same code? (a) CKNF (b) DLOG (c) EMPH (d) HPME
- 18.If COLD is written as EQNF, how is RAIN written in the same code? (a) TCKP (b) PYGL (c) UDLQ (d) SBJO
- 19.If SUN is written as HFM, how is LAMP written in the same code? (a) NYMJ (b) PAOL (c) OZNK (d) MBNQ
- 20.If PEN is written as QFO, how is NEST written in the same code? (a) OFTU (b) PGUV (c) MDRS (d) UTFO
- 21.If BOOK is written as YLLP, how is SHIP written in the same code? (a) ITSL (b) TIJQ (c) HSRK (d) GRQJ
- 22.If BOOK is written as DQQM, how is LAMP written in the same code? (a) JYKN (b) ODPS (c) MBNQ (d) NCOR
- 23.If PARK is written as KRAP, how is PEN written in the same code? (a) NEP (b) MDO (c) QFO (d) OFQ
- 24.If BOOK is written as KOOB, how is CAKE written in the same code? (a) DBLF (b) FLBD (c) DJZB (d) EKAC
- 25.If WIND is written as DRMW, how is CAT written in the same code? (a) DBU (b) WYF (c) XZG (d) YAH
- 26.If HAND is written as JCPF, how is STAR written in the same code? (a) VWDU (b) TUBS (c) QRYP (d) UVCT
- 27.If TREE is written as GIVV, how is HAND written in the same code? (a) SZMW (b) IBOE (c) RYLV (d) TANX
- 28.If PARK is written as QBSL, how is TOYS written in the same code? (a) TZPU (b) UPZT (c) SNXR (d) VQAU
- 29.If BOAT is written as UBPC, how is PARK written in the same code? (a) KRAP (b) QBSL (c) JQZO (d) LSBQ
- 30.If DOG is written as HPE, how is LION written in the same code? (a) OPJM (b) NOIL (c) MJPO (d) MNHK
- 31.If MILK is written as MNKO, how is LAMP written in the same code? (a) NKYJ (b) PMAL (c) ROCN (d) NCOR
- 32.If PEN is written as PGR, how is GOLD written in the same code? (a) BJME (b) FNQI (c) IQNF (d) DLOG
- 33.If DOG is written as GOD, how is DRUM written in the same code? (a) NVSE (b) ESVN (c) MURD (d) LTQC
- 34.If BOOK is written as JNNA, how is PEN written in the same code? (a) MDO (b) OFQ (c) ODM (d) NEP
- 35.If FROG is written as GORF, how is DOG written in the same code? (a) HPE (b) GOD (c) EPH (d) FNC
- 36.If MOON is written as LNNM, how is DOG written in the same code? (a) EPH (b) DOG (c) BME (d) CNF
- 37.If FISH is written as EHRG, how is PEN written in the same code? (a) QFO (b) NCL (c) ODM (d) PEN
- 38.If BALL is written as EDOO, how is FROG written in the same code? (a) HTQI (b) JVSK (c) COLD (d) IURJ
- 39.If PARK is written as LSBQ, how is SHIP written in the same code? (a) PIHS (b) TIJQ (c) QJIT (d) OHGR
- 40.If KITE is written as ETIK, how is BOOK written in the same code? (a) CPPL (b) KOOB (c) LPPC (d) JNNA
Answer key
- IURJ
- SZNA
- ETIK
- JKHL
- VCE
- GIVV
- JNNA
- XZG
- EMPD
- YLLP
- EPH
- YLZG
- YZOO
- NPPO
- LHKJ
- OLRQ
- DLOG
- TCKP
- OZNK
- OFTU
- HSRK
- NCOR
- NEP
- EKAC
- XZG
- UVCT
- SZMW
- UPZT
- LSBQ
- OPJM
- ROCN
- FNQI
- MURD
- MDO
- GOD
- CNF
- ODM
- IURJ
- QJIT
- KOOB
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