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 RAIN is written as UDLQ, how is LAMP written in the same code? (a) ODPS (b) IXJM (c) PEQT (d) NCOR
- 2.If BELL is written as KKDA, how is SUN written in the same code? (a) MTR (b) RTM (c) NUS (d) OVT
- 3.If PEN is written as NEP, how is STAR written in the same code? (a) SBUT (b) TUBS (c) QZSR (d) RATS
- 4.If LION is written as NOIL, how is CAT written in the same code? (a) TAC (b) SZB (c) DBU (d) UBD
- 5.If MILK is written as JKHL, how is BELL written in the same code? (a) LLEB (b) ADKK (c) MMFC (d) KKDA
- 6.If MILK is written as KLIM, how is CAT written in the same code? (a) SZB (b) UBD (c) TAC (d) DBU
- 7.If FISH is written as URHS, how is HAND written in the same code? (a) SZMW (b) RYLV (c) IBOE (d) TANX
- 8.If BOAT is written as TAOB, how is RAIN written in the same code? (a) MHZQ (b) SBJO (c) NIAR (d) OJBS
- 9.If JUMP is written as QFNK, how is NEST written in the same code? (a) NWIH (b) MVHG (c) OFTU (d) LUGF
- 10.If HAND is written as CMZG, how is FROG written in the same code? (a) GORF (b) HPSG (c) FNQE (d) EQNF
- 11.If DOG is written as WLT, how is FROG written in the same code? (a) VJMU (b) GSPH (c) UILT (d) THKS
- 12.If TOYS is written as GLBH, how is TREE written in the same code? (a) USFF (b) HJWW (c) FHUU (d) GIVV
- 13.If JUMP is written as LWOR, how is MILK written in the same code? (a) OKNM (b) PLON (c) KGJI (d) NJML
- 14.If MILK is written as NJML, how is TREE written in the same code? (a) USFF (b) VTGG (c) FFSU (d) SQDD
- 15.If GOLD is written as CKNF, how is FROG written in the same code? (a) EQNF (b) FNQE (c) HPSG (d) GORF
- 16.If RAIN is written as NIAR, how is CAKE written in the same code? (a) DJZB (b) DBLF (c) FLBD (d) EKAC
- 17.If LION is written as NOIL, how is BOAT written in the same code? (a) CPBU (b) SZNA (c) TAOB (d) UBPC
- 18.If COLD is written as DPME, how is HAND written in the same code? (a) GZMC (b) IBOE (c) JCPF (d) EOBI
- 19.If DOG is written as FNC, how is CAT written in the same code? (a) TAC (b) SZB (c) UBD (d) BZS
- 20.If BOOK is written as KOOB, how is KITE written in the same code? (a) LJUF (b) FUJL (c) ETIK (d) DSHJ
- 21.If CAKE is written as FLBD, how is COLD written in the same code? (a) CKNB (b) EMPD (c) DLOC (d) DPME
- 22.If BALL is written as LLAB, how is DOG written in the same code? (a) EPH (b) GOD (c) HPE (d) FNC
- 23.If BALL is written as DCNN, how is HAND written in the same code? (a) FYLB (b) JCPF (c) IBOE (d) KDQG
- 24.If JUMP is written as PMUJ, how is SUN written in the same code? (a) NUS (b) TVO (c) OVT (d) MTR
- 25.If SUN is written as RTM, how is MOON written in the same code? (a) NPPO (b) LNNM (c) MOON (d) KMML
- 26.If KITE is written as ETIK, how is TREE written in the same code? (a) FFSU (b) EERT (c) USFF (d) DDQS
- 27.If NEST is written as TSEN, how is GOLD written in the same code? (a) HPME (b) EMPH (c) DLOG (d) CKNF
- 28.If SHIP is written as RKJU, how is MILK written in the same code? (a) IJGK (b) KLIM (c) OKNM (d) MNKO
- 29.If SUN is written as TVO, how is WIND written in the same code? (a) VHMC (b) EOJX (c) YKPF (d) XJOE
- 30.If NEST is written as PGUV, how is BOOK written in the same code? (a) ZMMI (b) ERRN (c) CPPL (d) DQQM
- 31.If DRUM is written as FTWO, how is LION written in the same code? (a) NKQP (b) MJPO (c) JGML (d) OLRQ
- 32.If FROG is written as IURJ, how is LION written in the same code? (a) IFLK (b) PMSR (c) OLRQ (d) NKQP
- 33.If BELL is written as YVOO, how is COLD written in the same code? (a) WKNV (b) DPME (c) XLOW (d) YMPX
- 34.If BALL is written as YZOO, how is LAMP written in the same code? (a) PAOL (b) OZNK (c) NYMJ (d) MBNQ
- 35.If FISH is written as JUKH, how is FROG written in the same code? (a) GORF (b) IQTH (c) HTQI (d) EMPD
- 36.If DESK is written as EFTL, how is HAND written in the same code? (a) GZMC (b) IBOE (c) JCPF (d) EOBI
- 37.If STAR is written as RSZQ, how is KITE written in the same code? (a) LJUF (b) IGRC (c) JHSD (d) KITE
- 38.If CAT is written as DBU, how is RAIN written in the same code? (a) QZHM (b) OJBS (c) SBJO (d) TCKP
- 39.If TREE is written as EERT, how is COLD written in the same code? (a) DPME (b) CKNB (c) EMPD (d) DLOC
- 40.If WIND is written as YKPF, how is BOAT written in the same code? (a) ZMYR (b) DQCV (c) ERDW (d) CPBU
Answer key
- ODPS
- MTR
- RATS
- TAC
- KKDA
- TAC
- SZMW
- NIAR
- MVHG
- FNQE
- UILT
- GIVV
- OKNM
- USFF
- FNQE
- EKAC
- TAOB
- IBOE
- SZB
- ETIK
- EMPD
- GOD
- JCPF
- NUS
- LNNM
- EERT
- DLOG
- MNKO
- XJOE
- DQQM
- NKQP
- OLRQ
- XLOW
- OZNK
- IQTH
- IBOE
- JHSD
- SBJO
- DLOC
- DQCV
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