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 DOG is written as GOD, how is STAR written in the same code? (a) QZSR (b) RATS (c) TUBS (d) SBUT
- 2.If WIND is written as EOJX, how is DESK written in the same code? (a) JRDC (b) KSED (c) EFTL (d) LTFE
- 3.If FROG is written as GORF, how is WIND written in the same code? (a) XJOE (b) EOJX (c) DNIW (d) CMHV
- 4.If KITE is written as PRGV, how is NEST written in the same code? (a) NWIH (b) LUGF (c) OFTU (d) MVHG
- 5.If BALL is written as MMBC, how is FISH written in the same code? (a) ITJG (b) GJTI (c) GRHE (d) HSIF
- 6.If TREE is written as RPCC, how is BOOK written in the same code? (a) ANNJ (b) YLLH (c) DQQM (d) ZMMI
- 7.If LAMP is written as PMAL, how is BELL written in the same code? (a) MMFC (b) LLEB (c) CFMM (d) KKDA
- 8.If LION is written as ORLM, how is JUMP written in the same code? (a) RGOL (b) PEMJ (c) KVNQ (d) QFNK
- 9.If JUMP is written as OLTI, how is CAKE written in the same code? (a) DJZB (b) BZJD (c) EKAC (d) FLBD
- 10.If NEST is written as UTFO, how is JUMP written in the same code? (a) KVNQ (b) QNVK (c) PMUJ (d) OLTI
- 11.If TOYS is written as UAQV, how is DOG written in the same code? (a) GOD (b) IQF (c) FQI (d) EMB
- 12.If KITE is written as PRGV, how is LAMP written in the same code? (a) PAOL (b) MBNQ (c) NYMJ (d) OZNK
- 13.If DRUM is written as MURD, how is BOAT written in the same code? (a) SZNA (b) CPBU (c) TAOB (d) UBPC
- 14.If TOYS is written as RMWQ, how is DESK written in the same code? (a) ABPH (b) FGUM (c) BCQI (d) CDRJ
- 15.If BELL is written as YVOO, how is PEN written in the same code? (a) LWN (b) JUL (c) KVM (d) QFO
- 16.If SUN is written as NUS, how is RAIN written in the same code? (a) OJBS (b) NIAR (c) SBJO (d) MHZQ
- 17.If FROG is written as HTQI, how is MILK written in the same code? (a) KGJI (b) PLON (c) OKNM (d) NJML
- 18.If CAKE is written as EKAC, how is DOG written in the same code? (a) HPE (b) EPH (c) FNC (d) GOD
- 19.If DESK is written as KSED, how is COLD written in the same code? (a) DLOC (b) EMPD (c) DPME (d) CKNB
- 20.If STAR is written as HGZI, how is BOOK written in the same code? (a) XKKO (b) CPPL (c) ZMMQ (d) YLLP
- 21.If GOLD is written as DLOG, how is FROG written in the same code? (a) HPSG (b) GSPH (c) FNQE (d) GORF
- 22.If LAMP is written as PMAL, how is TOYS written in the same code? (a) RXNS (b) SYOT (c) UPZT (d) TZPU
- 23.If RAIN is written as PYGL, how is PEN written in the same code? (a) RGP (b) MBK (c) ODM (d) NCL
- 24.If WIND is written as DNIW, how is CAKE written in the same code? (a) DBLF (b) EKAC (c) DJZB (d) FLBD
- 25.If DESK is written as BCQI, how is COLD written in the same code? (a) ZLIA (b) EQNF (c) AMJB (d) BNKC
- 26.If MOON is written as NLLM, how is DOG written in the same code? (a) WLT (b) EPH (c) XMU (d) VKS
- 27.If SHIP is written as HSRK, how is BALL written in the same code? (a) YZOO (b) XYNN (c) CBMM (d) ZAPP
- 28.If FISH is written as GJTI, how is DRUM written in the same code? (a) CQTL (b) NVSE (c) FTWO (d) ESVN
- 29.If MILK is written as KLIM, how is GOLD written in the same code? (a) HPME (b) EMPH (c) DLOG (d) CKNF
- 30.If DOG is written as IQF, how is KITE written in the same code? (a) CRGI (b) MKVG (c) ETIK (d) GVKM
- 31.If GOLD is written as DLOG, how is NEST written in the same code? (a) UTFO (b) OFTU (c) TSEN (d) SRDM
- 32.If BOAT is written as TAOB, how is FISH written in the same code? (a) ITJG (b) HSIF (c) GRHE (d) GJTI
- 33.If MOON is written as OQQP, how is GOLD written in the same code? (a) IQNF (b) HPME (c) EMJB (d) JROG
- 34.If MILK is written as OKNM, how is DESK written in the same code? (a) EFTL (b) BCQI (c) GHVN (d) FGUM
- 35.If BALL is written as YZOO, how is FISH written in the same code? (a) GJTI (b) VSIT (c) TQGR (d) URHS
- 36.If TREE is written as EERT, how is BOOK written in the same code? (a) JNNA (b) CPPL (c) LPPC (d) KOOB
- 37.If MILK is written as LMJN, how is PARK written in the same code? (a) LSBQ (b) QBSL (c) JQZO (d) KRAP
- 38.If LION is written as OPJM, how is BELL written in the same code? (a) KKDA (b) MMFC (c) CFMM (d) LLEB
- 39.If TREE is written as RPCC, how is CAKE written in the same code? (a) ZXHB (b) ECMG (c) BZJD (d) AYIC
- 40.If BALL is written as LLAB, how is RAIN written in the same code? (a) OJBS (b) SBJO (c) NIAR (d) MHZQ
Answer key
- RATS
- LTFE
- DNIW
- MVHG
- ITJG
- ZMMI
- LLEB
- QFNK
- DJZB
- QNVK
- IQF
- OZNK
- TAOB
- BCQI
- KVM
- NIAR
- OKNM
- GOD
- DLOC
- YLLP
- GORF
- SYOT
- NCL
- EKAC
- AMJB
- WLT
- YZOO
- ESVN
- DLOG
- GVKM
- TSEN
- HSIF
- IQNF
- FGUM
- URHS
- KOOB
- LSBQ
- MMFC
- AYIC
- NIAR
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