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 DRUM is written as MURD, how is CAKE written in the same code? (a) FLBD (b) DBLF (c) EKAC (d) DJZB
- 2.If NEST is written as TSEN, how is GOLD written in the same code? (a) DLOG (b) HPME (c) EMPH (d) CKNF
- 3.If TREE is written as GIVV, how is DOG written in the same code? (a) EPH (b) VKS (c) XMU (d) WLT
- 4.If CAKE is written as DBLF, how is DRUM written in the same code? (a) NVSE (b) FTWO (c) CQTL (d) ESVN
- 5.If DRUM is written as FTWO, how is DESK written in the same code? (a) EFTL (b) BCQI (c) FGUM (d) GHVN
- 6.If PEN is written as PGR, how is SHIP written in the same code? (a) UJKR (b) PIHS (c) RKJU (d) NGFQ
- 7.If BOOK is written as KOOB, how is STAR written in the same code? (a) QZSR (b) RATS (c) TUBS (d) SBUT
- 8.If CAT is written as FDW, how is PARK written in the same code? (a) RCTM (b) SDUN (c) MXOH (d) TEVO
- 9.If MILK is written as OKNM, how is PEN written in the same code? (a) NCL (b) SHQ (c) QFO (d) RGP
- 10.If NEST is written as MVHG, how is LION written in the same code? (a) ORLM (b) PSMN (c) MJPO (d) NQKL
- 11.If TREE is written as RPCC, how is HAND written in the same code? (a) GZMC (b) JCPF (c) FYLB (d) EXKA
- 12.If SUN is written as RTM, how is BELL written in the same code? (a) BELL (b) CFMM (c) ZCJJ (d) ADKK
- 13.If JUMP is written as PMUJ, how is GOLD written in the same code? (a) EMPH (b) HPME (c) DLOG (d) CKNF
- 14.If STAR is written as SBUT, how is LAMP written in the same code? (a) OLZK (b) MBNQ (c) QNBM (d) PMAL
- 15.If RAIN is written as QZHM, how is BOAT written in the same code? (a) BOAT (b) CPBU (c) ANZS (d) ZMYR
- 16.If LAMP is written as PMAL, how is FROG written in the same code? (a) HPSG (b) FNQE (c) GSPH (d) GORF
- 17.If LAMP is written as PMAL, how is PEN written in the same code? (a) OFQ (b) MDO (c) NEP (d) QFO
- 18.If CAT is written as XZG, how is WIND written in the same code? (a) ESNX (b) XJOE (c) CQLV (d) DRMW
- 19.If CAKE is written as XZPV, how is NEST written in the same code? (a) LUGF (b) MVHG (c) OFTU (d) NWIH
- 20.If LAMP is written as NCOR, how is MOON written in the same code? (a) NPPO (b) OQQP (c) PRRQ (d) KMML
- 21.If JUMP is written as ITLO, how is DRUM written in the same code? (a) ESVN (b) CQTL (c) BPSK (d) DRUM
- 22.If COLD is written as XLOW, how is BOOK written in the same code? (a) XKKO (b) CPPL (c) ZMMQ (d) YLLP
- 23.If RAIN is written as IZRM, how is BELL written in the same code? (a) ZWPP (b) CFMM (c) YVOO (d) XUNN
- 24.If KITE is written as DSHJ, how is LAMP written in the same code? (a) QNBM (b) KZLO (c) OLZK (d) PMAL
- 25.If PARK is written as KZIP, how is RAIN written in the same code? (a) HYQL (b) IZRM (c) SBJO (d) JASN
- 26.If STAR is written as HGZI, how is SUN written in the same code? (a) GEL (b) TVO (c) HFM (d) IGN
- 27.If GOLD is written as EMPH, how is DRUM written in the same code? (a) LTQC (b) NVSE (c) ESVN (d) MURD
- 28.If COLD is written as BNKC, how is MOON written in the same code? (a) MOON (b) KMML (c) LNNM (d) NPPO
- 29.If SUN is written as OVT, how is BALL written in the same code? (a) CBMM (b) LLAB (c) MMBC (d) KKZA
- 30.If TREE is written as USFF, how is COLD written in the same code? (a) DPME (b) BNKC (c) EQNF (d) EMPD
- 31.If BELL is written as MMFC, how is DRUM written in the same code? (a) ESVN (b) LTQC (c) MURD (d) NVSE
- 32.If DESK is written as KSED, how is DOG written in the same code? (a) GOD (b) FNC (c) EPH (d) HPE
- 33.If TOYS is written as GLBH, how is NEST written in the same code? (a) LUGF (b) MVHG (c) OFTU (d) NWIH
- 34.If WIND is written as XJOE, how is GOLD written in the same code? (a) HPME (b) EMPH (c) FNKC (d) IQNF
- 35.If TOYS is written as GLBH, how is COLD written in the same code? (a) YMPX (b) DPME (c) WKNV (d) XLOW
- 36.If KITE is written as JHSD, how is GOLD written in the same code? (a) HPME (b) GOLD (c) FNKC (d) EMJB
- 37.If BALL is written as DCNN, how is DESK written in the same code? (a) EFTL (b) BCQI (c) GHVN (d) FGUM
- 38.If LION is written as ORLM, how is FISH written in the same code? (a) TQGR (b) VSIT (c) URHS (d) GJTI
- 39.If KITE is written as LJUF, how is BOOK written in the same code? (a) ANNJ (b) CPPL (c) LPPC (d) DQQM
- 40.If BOAT is written as VCQD, how is CAKE written in the same code? (a) EKAC (b) ECMG (c) CIYA (d) GMCE
Answer key
- EKAC
- DLOG
- WLT
- ESVN
- FGUM
- RKJU
- RATS
- SDUN
- RGP
- ORLM
- FYLB
- ADKK
- DLOG
- QNBM
- ANZS
- GORF
- NEP
- DRMW
- MVHG
- OQQP
- CQTL
- YLLP
- YVOO
- OLZK
- IZRM
- HFM
- NVSE
- LNNM
- MMBC
- DPME
- NVSE
- GOD
- MVHG
- HPME
- XLOW
- FNKC
- FGUM
- URHS
- CPPL
- GMCE
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