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 CAT is written as UBD, how is STAR written in the same code? (a) QZSR (b) RATS (c) TUBS (d) SBUT
- 2.If LAMP is written as OZNK, how is JUMP written in the same code? (a) PEMJ (b) KVNQ (c) RGOL (d) QFNK
- 3.If BOAT is written as YLZG, how is TOYS written in the same code? (a) UPZT (b) GLBH (c) HMCI (d) FKAG
- 4.If MILK is written as NROP, how is TOYS written in the same code? (a) HMCI (b) UPZT (c) GLBH (d) FKAG
- 5.If WIND is written as VHMC, how is JUMP written in the same code? (a) ITLO (b) JUMP (c) HSKN (d) KVNQ
- 6.If GOLD is written as TLOW, how is BOAT written in the same code? (a) YLZG (b) ZMAH (c) CPBU (d) XKYF
- 7.If DESK is written as LTFE, how is MOON written in the same code? (a) MNNL (b) NOOM (c) OPPN (d) NPPO
- 8.If STAR is written as HGZI, how is BALL written in the same code? (a) XYNN (b) CBMM (c) YZOO (d) ZAPP
- 9.If BOOK is written as LPPC, how is GOLD written in the same code? (a) HPME (b) CKNF (c) DLOG (d) EMPH
- 10.If GOLD is written as TLOW, how is KITE written in the same code? (a) LJUF (b) QSHW (c) OQFU (d) PRGV
- 11.If LION is written as JGML, how is DOG written in the same code? (a) ALD (b) FQI (c) CNF (d) BME
- 12.If TOYS is written as SYOT, how is COLD written in the same code? (a) EMPD (b) DPME (c) CKNB (d) DLOC
- 13.If COLD is written as CKNB, how is BELL written in the same code? (a) LLEB (b) MMFC (c) KKDA (d) ADKK
- 14.If WIND is written as EOJX, how is BOAT written in the same code? (a) SZNA (b) CPBU (c) TAOB (d) UBPC
- 15.If KITE is written as ETIK, how is BOOK written in the same code? (a) LPPC (b) CPPL (c) JNNA (d) KOOB
- 16.If GOLD is written as IQNF, how is BELL written in the same code? (a) EHOO (b) ZCJJ (c) DGNN (d) CFMM
- 17.If SUN is written as QSL, how is PEN written in the same code? (a) MBK (b) ODM (c) RGP (d) NCL
- 18.If GOLD is written as EMJB, how is FISH written in the same code? (a) HKUJ (b) EHRG (c) DGQF (d) CFPE
- 19.If MOON is written as OPPN, how is WIND written in the same code? (a) XJOE (b) DNIW (c) CMHV (d) EOJX
- 20.If DESK is written as GHVN, how is MILK written in the same code? (a) OKNM (b) JFIH (c) QMPO (d) PLON
- 21.If BOOK is written as YLLP, how is TOYS written in the same code? (a) UPZT (b) HMCI (c) GLBH (d) FKAG
- 22.If SHIP is written as QJIT, how is WIND written in the same code? (a) CMHV (b) DNIW (c) XJOE (d) EOJX
- 23.If FISH is written as URHS, how is BOAT written in the same code? (a) CPBU (b) YLZG (c) ZMAH (d) XKYF
- 24.If BOOK is written as YLLP, how is CAKE written in the same code? (a) YAQW (b) WYOU (c) DBLF (d) XZPV
- 25.If SUN is written as UWP, how is LION written in the same code? (a) OLRQ (b) NKQP (c) MJPO (d) JGML
- 26.If FROG is written as HPSG, how is MILK written in the same code? (a) JKHL (b) KLIM (c) LMJN (d) NJML
- 27.If LAMP is written as PMAL, how is LION written in the same code? (a) NOIL (b) MJPO (c) MNHK (d) OPJM
- 28.If SHIP is written as HSRK, how is NEST written in the same code? (a) LUGF (b) OFTU (c) MVHG (d) NWIH
- 29.If FROG is written as GORF, how is DRUM written in the same code? (a) ESVN (b) MURD (c) LTQC (d) NVSE
- 30.If WIND is written as DNIW, how is CAT written in the same code? (a) TAC (b) DBU (c) UBD (d) SZB
- 31.If SUN is written as HFM, how is SHIP written in the same code? (a) HSRK (b) TIJQ (c) GRQJ (d) ITSL
- 32.If FROG is written as FNQE, how is LAMP written in the same code? (a) QNBM (b) PMAL (c) OLZK (d) KZLO
- 33.If BOOK is written as MQQD, how is DOG written in the same code? (a) IQF (b) FQI (c) GOD (d) EMB
- 34.If DOG is written as WLT, how is SUN written in the same code? (a) TVO (b) IGN (c) GEL (d) HFM
- 35.If CAT is written as VCE, how is RAIN written in the same code? (a) TCKP (b) NIAR (c) LGYP (d) PKCT
- 36.If CAKE is written as FLBD, how is NEST written in the same code? (a) SRDM (b) TSEN (c) OFTU (d) UTFO
- 37.If KITE is written as PRGV, how is BALL written in the same code? (a) CBMM (b) XYNN (c) YZOO (d) ZAPP
- 38.If LION is written as KHNM, how is SHIP written in the same code? (a) RGHO (b) TIJQ (c) SHIP (d) QFGN
- 39.If LAMP is written as PMAL, how is PARK written in the same code? (a) QBSL (b) LSBQ (c) KRAP (d) JQZO
- 40.If MILK is written as KLIM, how is RAIN written in the same code? (a) OJBS (b) SBJO (c) NIAR (d) MHZQ
Answer key
- SBUT
- QFNK
- GLBH
- GLBH
- ITLO
- YLZG
- OPPN
- YZOO
- EMPH
- PRGV
- BME
- DLOC
- KKDA
- UBPC
- KOOB
- DGNN
- NCL
- DGQF
- EOJX
- PLON
- GLBH
- EOJX
- YLZG
- XZPV
- NKQP
- LMJN
- NOIL
- MVHG
- MURD
- TAC
- HSRK
- OLZK
- IQF
- HFM
- PKCT
- UTFO
- YZOO
- RGHO
- KRAP
- NIAR
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