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 DESK is written as KSED, how is FISH written in the same code? (a) GRHE (b) HSIF (c) ITJG (d) GJTI
- 2.If SUN is written as UWP, how is RAIN written in the same code? (a) UDLQ (b) TCKP (c) SBJO (d) PYGL
- 3.If BALL is written as LLAB, how is TREE written in the same code? (a) EERT (b) USFF (c) DDQS (d) FFSU
- 4.If TOYS is written as SYOT, how is NEST written in the same code? (a) OFTU (b) TSEN (c) UTFO (d) SRDM
- 5.If KITE is written as LJUF, how is PEN written in the same code? (a) QFO (b) RGP (c) ODM (d) OFQ
- 6.If JUMP is written as QFNK, how is FROG written in the same code? (a) THKS (b) VJMU (c) GSPH (d) UILT
- 7.If HAND is written as SZMW, how is FISH written in the same code? (a) TQGR (b) GJTI (c) VSIT (d) URHS
- 8.If NEST is written as LCQR, how is COLD written in the same code? (a) BNKC (b) EQNF (c) AMJB (d) ZLIA
- 9.If FROG is written as GORF, how is BOOK written in the same code? (a) JNNA (b) KOOB (c) CPPL (d) LPPC
- 10.If BOAT is written as VCQD, how is KITE written in the same code? (a) MKVG (b) ETIK (c) GVKM (d) CRGI
- 11.If JUMP is written as PMUJ, how is SHIP written in the same code? (a) QJIT (b) OHGR (c) TIJQ (d) PIHS
- 12.If RAIN is written as SBJO, how is COLD written in the same code? (a) EMPD (b) BNKC (c) EQNF (d) DPME
- 13.If BOOK is written as CPPL, how is BALL written in the same code? (a) DCNN (b) MMBC (c) AZKK (d) CBMM
- 14.If TREE is written as GGTV, how is NEST written in the same code? (a) PGUV (b) VUGP (c) RQCL (d) TSEN
- 15.If BELL is written as YVOO, how is DESK written in the same code? (a) XWIQ (b) EFTL (c) WVHP (d) VUGO
- 16.If MOON is written as NOOM, how is CAT written in the same code? (a) SZB (b) DBU (c) TAC (d) UBD
- 17.If KITE is written as FUJL, how is BOOK written in the same code? (a) LPPC (b) CPPL (c) JNNA (d) KOOB
- 18.If DOG is written as EPH, how is SUN written in the same code? (a) TVO (b) RTM (c) OVT (d) UWP
- 19.If DESK is written as WVHP, how is MILK written in the same code? (a) NJML (b) NROP (c) MQNO (d) OSPQ
- 20.If GOLD is written as TLOW, how is CAT written in the same code? (a) YAH (b) WYF (c) XZG (d) DBU
- 21.If LAMP is written as ROCN, how is BOOK written in the same code? (a) DQQM (b) MQQD (c) KOOB (d) IMMZ
- 22.If PEN is written as KVM, how is SHIP written in the same code? (a) ITSL (b) GRQJ (c) HSRK (d) TIJQ
- 23.If SHIP is written as HSRK, how is PARK written in the same code? (a) LAJQ (b) KZIP (c) QBSL (d) JYHO
- 24.If BOAT is written as CPBU, how is CAKE written in the same code? (a) ECMG (b) FLBD (c) DBLF (d) BZJD
- 25.If DESK is written as JRDC, how is LAMP written in the same code? (a) KZLO (b) QNBM (c) OLZK (d) PMAL
- 26.If DOG is written as FNC, how is BOAT written in the same code? (a) SZNA (b) TAOB (c) ANZS (d) UBPC
- 27.If PARK is written as KRAP, how is TREE written in the same code? (a) FFSU (b) DDQS (c) USFF (d) EERT
- 28.If PARK is written as OZQJ, how is MOON written in the same code? (a) KMML (b) MOON (c) NPPO (d) LNNM
- 29.If SHIP is written as HSRK, how is RAIN written in the same code? (a) HYQL (b) JASN (c) SBJO (d) IZRM
- 30.If CAKE is written as XZPV, how is BELL written in the same code? (a) XUNN (b) CFMM (c) ZWPP (d) YVOO
- 31.If SUN is written as NUS, how is BOOK written in the same code? (a) JNNA (b) LPPC (c) CPPL (d) KOOB
- 32.If SHIP is written as PIHS, how is DOG written in the same code? (a) EPH (b) HPE (c) GOD (d) FNC
- 33.If JUMP is written as MXPS, how is PARK written in the same code? (a) TEVO (b) RCTM (c) MXOH (d) SDUN
- 34.If RAIN is written as UDLQ, how is DOG written in the same code? (a) ALD (b) FQI (c) HSK (d) GRJ
- 35.If HAND is written as DNAH, how is PEN written in the same code? (a) NEP (b) OFQ (c) QFO (d) MDO
- 36.If TREE is written as FFSU, how is TOYS written in the same code? (a) UPZT (b) SYOT (c) RXNS (d) TZPU
- 37.If DOG is written as GOD, how is PEN written in the same code? (a) OFQ (b) MDO (c) QFO (d) NEP
- 38.If MOON is written as NOOM, how is PEN written in the same code? (a) QFO (b) OFQ (c) NEP (d) MDO
- 39.If KITE is written as IGRC, how is BOOK written in the same code? (a) ANNJ (b) ZMMI (c) DQQM (d) YLLH
- 40.If DOG is written as GOD, how is GOLD written in the same code? (a) DLOG (b) HPME (c) CKNF (d) EMPH
Answer key
- HSIF
- TCKP
- EERT
- TSEN
- QFO
- UILT
- URHS
- AMJB
- KOOB
- GVKM
- PIHS
- DPME
- CBMM
- VUGP
- WVHP
- TAC
- LPPC
- TVO
- NROP
- XZG
- MQQD
- HSRK
- KZIP
- DBLF
- OLZK
- SZNA
- EERT
- LNNM
- IZRM
- YVOO
- KOOB
- GOD
- SDUN
- GRJ
- NEP
- TZPU
- NEP
- NEP
- ZMMI
- DLOG
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