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 FROG is written as IQTH, how is DOG written in the same code? (a) GOD (b) EMB (c) IQF (d) FQI
- 2.If CAT is written as BZS, how is LAMP written in the same code? (a) MBNQ (b) KZLO (c) LAMP (d) JYKN
- 3.If DRUM is written as FTWO, how is LAMP written in the same code? (a) JYKN (b) NCOR (c) MBNQ (d) ODPS
- 4.If PEN is written as QFO, how is TREE written in the same code? (a) FFSU (b) USFF (c) SQDD (d) VTGG
- 5.If BELL is written as DGNN, how is CAT written in the same code? (a) ECV (b) AYR (c) FDW (d) DBU
- 6.If WIND is written as EOJX, how is LION written in the same code? (a) MJPO (b) NOIL (c) OPJM (d) MNHK
- 7.If TOYS is written as RXNS, how is RAIN written in the same code? (a) QZHM (b) NIAR (c) OJBS (d) MHZQ
- 8.If MILK is written as MNKO, how is FISH written in the same code? (a) JUKH (b) FQGD (c) HKUJ (d) HSIF
- 9.If WIND is written as DNIW, how is DOG written in the same code? (a) EPH (b) GOD (c) FNC (d) HPE
- 10.If CAKE is written as EKAC, how is DESK written in the same code? (a) JRDC (b) KSED (c) EFTL (d) LTFE
- 11.If DESK is written as WVHP, how is FISH written in the same code? (a) VSIT (b) GJTI (c) TQGR (d) URHS
- 12.If NEST is written as SRDM, how is GOLD written in the same code? (a) FNKC (b) EMPH (c) CKNF (d) DLOG
- 13.If CAKE is written as DBLF, how is RAIN written in the same code? (a) SBJO (b) QZHM (c) OJBS (d) TCKP
- 14.If FISH is written as HSIF, how is SHIP written in the same code? (a) OHGR (b) PIHS (c) TIJQ (d) QJIT
- 15.If DOG is written as WLT, how is PARK written in the same code? (a) JYHO (b) KZIP (c) LAJQ (d) QBSL
- 16.If KITE is written as FUJL, how is DRUM written in the same code? (a) LTQC (b) ESVN (c) MURD (d) NVSE
- 17.If HAND is written as EOBI, how is KITE written in the same code? (a) LJUF (b) FUJL (c) ETIK (d) DSHJ
- 18.If JUMP is written as MXPS, how is GOLD written in the same code? (a) KSPH (b) JROG (c) DLIA (d) IQNF
- 19.If MILK is written as OKNM, how is WIND written in the same code? (a) UGLB (b) ZLQG (c) XJOE (d) YKPF
- 20.If CAKE is written as EKAC, how is MILK written in the same code? (a) JKHL (b) KLIM (c) LMJN (d) NJML
- 21.If BOOK is written as YLLP, how is TOYS written in the same code? (a) FKAG (b) GLBH (c) UPZT (d) HMCI
- 22.If LAMP is written as OZNK, how is FISH written in the same code? (a) GJTI (b) VSIT (c) URHS (d) TQGR
- 23.If TOYS is written as GLBH, how is TREE written in the same code? (a) HJWW (b) USFF (c) FHUU (d) GIVV
- 24.If BOAT is written as UBPC, how is TREE written in the same code? (a) USFF (b) FFSU (c) EERT (d) DDQS
- 25.If STAR is written as RSZQ, how is BALL written in the same code? (a) BALL (b) CBMM (c) AZKK (d) ZYJJ
- 26.If DOG is written as EPH, how is JUMP written in the same code? (a) QNVK (b) LWOR (c) ITLO (d) KVNQ
- 27.If CAKE is written as XZPV, how is PARK written in the same code? (a) LAJQ (b) KZIP (c) JYHO (d) QBSL
- 28.If BELL is written as LLEB, how is BOAT written in the same code? (a) CPBU (b) UBPC (c) TAOB (d) SZNA
- 29.If COLD is written as DLOC, how is TREE written in the same code? (a) DDQS (b) USFF (c) EERT (d) FFSU
- 30.If GOLD is written as TLOW, how is COLD written in the same code? (a) XLOW (b) WKNV (c) DPME (d) YMPX
- 31.If GOLD is written as TLOW, how is CAT written in the same code? (a) YAH (b) XZG (c) WYF (d) DBU
- 32.If MILK is written as NROP, how is TREE written in the same code? (a) FHUU (b) HJWW (c) USFF (d) GIVV
- 33.If MILK is written as LMJN, how is MOON written in the same code? (a) NOOM (b) NPPO (c) OPPN (d) MNNL
- 34.If BALL is written as EDOO, how is BOAT written in the same code? (a) FSEX (b) YLXQ (c) DQCV (d) ERDW
- 35.If SHIP is written as RKJU, how is CAKE written in the same code? (a) CIYA (b) EKAC (c) GMCE (d) ECMG
- 36.If FISH is written as EHRG, how is CAKE written in the same code? (a) DBLF (b) CAKE (c) AYIC (d) BZJD
- 37.If PARK is written as KZIP, how is HAND written in the same code? (a) RYLV (b) TANX (c) IBOE (d) SZMW
- 38.If KITE is written as PRGV, how is RAIN written in the same code? (a) HYQL (b) IZRM (c) SBJO (d) JASN
- 39.If JUMP is written as PMUJ, how is DOG written in the same code? (a) GOD (b) HPE (c) FNC (d) EPH
- 40.If PARK is written as KRAP, how is WIND written in the same code? (a) EOJX (b) CMHV (c) DNIW (d) XJOE
Answer key
- IQF
- KZLO
- NCOR
- USFF
- ECV
- OPJM
- MHZQ
- JUKH
- GOD
- KSED
- URHS
- CKNF
- SBJO
- PIHS
- KZIP
- NVSE
- FUJL
- JROG
- YKPF
- KLIM
- GLBH
- URHS
- GIVV
- FFSU
- AZKK
- KVNQ
- KZIP
- TAOB
- EERT
- XLOW
- XZG
- GIVV
- OPPN
- ERDW
- GMCE
- BZJD
- SZMW
- IZRM
- GOD
- DNIW
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