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 COLD is written as CKNB, how is FISH written in the same code? (a) HSIF (b) ITJG (c) GRHE (d) EHRG
- 2.If KITE is written as JHSD, how is TREE written in the same code? (a) RPCC (b) USFF (c) SQDD (d) TREE
- 3.If FISH is written as ILVK, how is LION written in the same code? (a) IFLK (b) PMSR (c) OLRQ (d) NKQP
- 4.If SUN is written as MTR, how is DESK written in the same code? (a) LTFE (b) KSED (c) CDRJ (d) JRDC
- 5.If TREE is written as EERT, how is RAIN written in the same code? (a) OJBS (b) SBJO (c) MHZQ (d) NIAR
- 6.If PARK is written as OZQJ, how is SUN written in the same code? (a) SUN (b) RTM (c) TVO (d) QSL
- 7.If SUN is written as HFM, how is TOYS written in the same code? (a) UPZT (b) HMCI (c) FKAG (d) GLBH
- 8.If MILK is written as KGJI, how is MOON written in the same code? (a) JLLK (b) LNNM (c) KMML (d) OQQP
- 9.If LAMP is written as QNBM, how is PEN written in the same code? (a) QFO (b) NEP (c) OFQ (d) MDO
- 10.If BOOK is written as CPPL, how is COLD written in the same code? (a) EQNF (b) BNKC (c) EMPD (d) DPME
- 11.If STAR is written as RATS, how is DESK written in the same code? (a) EFTL (b) JRDC (c) KSED (d) LTFE
- 12.If SHIP is written as VKLS, how is RAIN written in the same code? (a) VEMR (b) OXFK (c) TCKP (d) UDLQ
- 13.If NEST is written as PGUV, how is MOON written in the same code? (a) NPPO (b) PRRQ (c) KMML (d) OQQP
- 14.If SUN is written as NUS, how is COLD written in the same code? (a) CKNB (b) DPME (c) EMPD (d) DLOC
- 15.If MILK is written as KLIM, how is KITE written in the same code? (a) LJUF (b) DSHJ (c) FUJL (d) ETIK
- 16.If WIND is written as ZLQG, how is LAMP written in the same code? (a) ODPS (b) NCOR (c) PEQT (d) IXJM
- 17.If FROG is written as GORF, how is BOAT written in the same code? (a) TAOB (b) CPBU (c) UBPC (d) SZNA
- 18.If CAKE is written as DJZB, how is TREE written in the same code? (a) FFSU (b) EERT (c) DDQS (d) SQDD
- 19.If BELL is written as ZCJJ, how is MILK written in the same code? (a) JFIH (b) KGJI (c) LHKJ (d) OKNM
- 20.If CAKE is written as BZJD, how is NEST written in the same code? (a) OFTU (b) LCQR (c) MDRS (d) NEST
- 21.If COLD is written as AMJB, how is DOG written in the same code? (a) ALD (b) CNF (c) FQI (d) BME
- 22.If TREE is written as DDQS, how is BALL written in the same code? (a) AZKK (b) LLAB (c) KKZA (d) MMBC
- 23.If DOG is written as EPH, how is DESK written in the same code? (a) LTFE (b) CDRJ (c) EFTL (d) FGUM
- 24.If NEST is written as QHVW, how is GOLD written in the same code? (a) DLIA (b) JROG (c) IQNF (d) KSPH
- 25.If STAR is written as TCVU, how is NEST written in the same code? (a) TSEN (b) RQCL (c) VUGP (d) PGUV
- 26.If TREE is written as EERT, how is BOOK written in the same code? (a) LPPC (b) CPPL (c) KOOB (d) JNNA
- 27.If PEN is written as NEP, how is JUMP written in the same code? (a) KVNQ (b) PMUJ (c) QNVK (d) OLTI
- 28.If LAMP is written as OLZK, how is HAND written in the same code? (a) DNAH (b) GZMC (c) EOBI (d) CMZG
- 29.If PARK is written as KRAP, how is LAMP written in the same code? (a) QNBM (b) OLZK (c) MBNQ (d) PMAL
- 30.If MILK is written as KLIM, how is PEN written in the same code? (a) NEP (b) QFO (c) OFQ (d) MDO
- 31.If BOOK is written as ZMMI, how is STAR written in the same code? (a) RSZQ (b) QRYP (c) PQXO (d) UVCT
- 32.If CAT is written as SZB, how is NEST written in the same code? (a) SRDM (b) MDRS (c) UTFO (d) TSEN
- 33.If NEST is written as UTFO, how is SHIP written in the same code? (a) OHGR (b) TIJQ (c) PIHS (d) QJIT
- 34.If FISH is written as HSIF, how is CAKE written in the same code? (a) DBLF (b) EKAC (c) DJZB (d) FLBD
- 35.If DOG is written as FNC, how is CAT written in the same code? (a) BZS (b) TAC (c) UBD (d) SZB
- 36.If GOLD is written as TLOW, how is SHIP written in the same code? (a) GRQJ (b) HSRK (c) TIJQ (d) ITSL
- 37.If PEN is written as KVM, how is JUMP written in the same code? (a) QFNK (b) KVNQ (c) PEMJ (d) RGOL
- 38.If SUN is written as HFM, how is WIND written in the same code? (a) XJOE (b) DRMW (c) CQLV (d) ESNX
- 39.If BELL is written as LLEB, how is FISH written in the same code? (a) HSIF (b) GRHE (c) ITJG (d) GJTI
- 40.If BELL is written as LLEB, how is SUN written in the same code? (a) MTR (b) OVT (c) TVO (d) NUS
Answer key
- GRHE
- SQDD
- OLRQ
- JRDC
- NIAR
- RTM
- GLBH
- KMML
- OFQ
- DPME
- KSED
- UDLQ
- OQQP
- DLOC
- ETIK
- ODPS
- TAOB
- DDQS
- KGJI
- MDRS
- BME
- KKZA
- EFTL
- JROG
- VUGP
- KOOB
- PMUJ
- CMZG
- PMAL
- NEP
- QRYP
- SRDM
- QJIT
- EKAC
- SZB
- HSRK
- QFNK
- DRMW
- HSIF
- NUS
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