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 LION is written as MNHK, how is TREE written in the same code? (a) EERT (b) SQDD (c) DDQS (d) FFSU
- 2.If CAT is written as TAC, how is GOLD written in the same code? (a) CKNF (b) EMPH (c) DLOG (d) HPME
- 3.If CAT is written as SZB, how is RAIN written in the same code? (a) OJBS (b) QZHM (c) NIAR (d) MHZQ
- 4.If DESK is written as KSED, how is NEST written in the same code? (a) OFTU (b) TSEN (c) SRDM (d) UTFO
- 5.If FROG is written as GORF, how is BOOK written in the same code? (a) CPPL (b) KOOB (c) LPPC (d) JNNA
- 6.If BELL is written as LLEB, how is GOLD written in the same code? (a) CKNF (b) HPME (c) EMPH (d) DLOG
- 7.If CAKE is written as XZPV, how is BOOK written in the same code? (a) CPPL (b) XKKO (c) YLLP (d) ZMMQ
- 8.If WIND is written as DRMW, how is COLD written in the same code? (a) XLOW (b) DPME (c) WKNV (d) YMPX
- 9.If FISH is written as GRHE, how is CAT written in the same code? (a) UBD (b) TAC (c) BZS (d) SZB
- 10.If CAT is written as ECV, how is GOLD written in the same code? (a) HPME (b) IQNF (c) EMJB (d) JROG
- 11.If CAT is written as DBU, how is HAND written in the same code? (a) JCPF (b) EOBI (c) GZMC (d) IBOE
- 12.If SUN is written as UWP, how is DOG written in the same code? (a) BME (b) EPH (c) FQI (d) GRJ
- 13.If DOG is written as WLT, how is BALL written in the same code? (a) XYNN (b) CBMM (c) YZOO (d) ZAPP
- 14.If BALL is written as CBMM, how is HAND written in the same code? (a) GZMC (b) JCPF (c) IBOE (d) EOBI
- 15.If COLD is written as DLOC, how is BOOK written in the same code? (a) LPPC (b) JNNA (c) KOOB (d) CPPL
- 16.If MOON is written as PQQO, how is BELL written in the same code? (a) DGNN (b) NNGD (c) LLEB (d) JJCZ
- 17.If DOG is written as CNF, how is KITE written in the same code? (a) IGRC (b) KITE (c) LJUF (d) JHSD
- 18.If SHIP is written as PIHS, how is STAR written in the same code? (a) SBUT (b) TUBS (c) QZSR (d) RATS
- 19.If MOON is written as NLLM, how is CAKE written in the same code? (a) WYOU (b) DBLF (c) YAQW (d) XZPV
- 20.If LAMP is written as ROCN, how is DESK written in the same code? (a) KSED (b) IQCB (c) MUGF (d) FGUM
- 21.If LION is written as ORLM, how is KITE written in the same code? (a) QSHW (b) PRGV (c) OQFU (d) LJUF
- 22.If LION is written as PQKN, how is MILK written in the same code? (a) IJGK (b) KLIM (c) OKNM (d) MNKO
- 23.If DRUM is written as MURD, how is LAMP written in the same code? (a) MBNQ (b) OLZK (c) PMAL (d) QNBM
- 24.If LAMP is written as OZNK, how is TREE written in the same code? (a) USFF (b) FHUU (c) GIVV (d) HJWW
- 25.If DRUM is written as WIFN, how is NEST written in the same code? (a) LUGF (b) OFTU (c) NWIH (d) MVHG
- 26.If NEST is written as TSEN, how is HAND written in the same code? (a) IBOE (b) CMZG (c) DNAH (d) EOBI
- 27.If RAIN is written as NIAR, how is TOYS written in the same code? (a) TZPU (b) RXNS (c) UPZT (d) SYOT
- 28.If HAND is written as SZMW, how is RAIN written in the same code? (a) HYQL (b) JASN (c) IZRM (d) SBJO
- 29.If TREE is written as USFF, how is NEST written in the same code? (a) MDRS (b) OFTU (c) PGUV (d) UTFO
- 30.If MOON is written as NOOM, how is SHIP written in the same code? (a) QJIT (b) OHGR (c) PIHS (d) TIJQ
- 31.If BOAT is written as VCQD, how is TOYS written in the same code? (a) VQAU (b) UAQV (c) QWMR (d) SYOT
- 32.If FISH is written as HSIF, how is WIND written in the same code? (a) EOJX (b) XJOE (c) DNIW (d) CMHV
- 33.If BOOK is written as KOOB, how is PEN written in the same code? (a) NEP (b) MDO (c) QFO (d) OFQ
- 34.If TOYS is written as GLBH, how is KITE written in the same code? (a) PRGV (b) OQFU (c) QSHW (d) LJUF
- 35.If COLD is written as XLOW, how is NEST written in the same code? (a) LUGF (b) OFTU (c) NWIH (d) MVHG
- 36.If COLD is written as DLOC, how is MOON written in the same code? (a) OPPN (b) NOOM (c) MNNL (d) NPPO
- 37.If CAKE is written as XZPV, how is BOAT written in the same code? (a) XKYF (b) CPBU (c) ZMAH (d) YLZG
- 38.If GOLD is written as JROG, how is LION written in the same code? (a) OLRQ (b) PMSR (c) IFLK (d) NKQP
- 39.If FISH is written as URHS, how is RAIN written in the same code? (a) HYQL (b) JASN (c) IZRM (d) SBJO
- 40.If PEN is written as KVM, how is LION written in the same code? (a) NQKL (b) PSMN (c) ORLM (d) MJPO
Answer key
- DDQS
- DLOG
- MHZQ
- TSEN
- KOOB
- DLOG
- YLLP
- XLOW
- SZB
- IQNF
- IBOE
- FQI
- YZOO
- IBOE
- KOOB
- NNGD
- JHSD
- RATS
- XZPV
- MUGF
- PRGV
- MNKO
- PMAL
- GIVV
- MVHG
- DNAH
- SYOT
- IZRM
- OFTU
- PIHS
- UAQV
- DNIW
- NEP
- PRGV
- MVHG
- NOOM
- YLZG
- OLRQ
- IZRM
- ORLM
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