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 JUMP is written as HSKN, how is SHIP written in the same code? (a) PEFM (b) QFGN (c) RGHO (d) UJKR
- 2.If TOYS is written as UAQV, how is LION written in the same code? (a) NKQP (b) NOIL (c) PQKN (d) LMGJ
- 3.If BELL is written as MMFC, how is FROG written in the same code? (a) FNQE (b) HPSG (c) GORF (d) GSPH
- 4.If STAR is written as RATS, how is CAT written in the same code? (a) UBD (b) DBU (c) TAC (d) SZB
- 5.If DESK is written as CDRJ, how is FROG written in the same code? (a) FROG (b) EQNF (c) GSPH (d) DPME
- 6.If PEN is written as ODM, how is SUN written in the same code? (a) TVO (b) QSL (c) SUN (d) RTM
- 7.If JUMP is written as OLTI, how is TREE written in the same code? (a) EERT (b) FFSU (c) DDQS (d) SQDD
- 8.If SUN is written as QSL, how is NEST written in the same code? (a) PGUV (b) LCQR (c) MDRS (d) KBPQ
- 9.If BALL is written as YZOO, how is JUMP written in the same code? (a) RGOL (b) KVNQ (c) PEMJ (d) QFNK
- 10.If CAKE is written as FDNH, how is BELL written in the same code? (a) YBII (b) FIPP (c) EHOO (d) DGNN
- 11.If LAMP is written as JYKN, how is WIND written in the same code? (a) VHMC (b) TFKA (c) YKPF (d) UGLB
- 12.If LAMP is written as PMAL, how is COLD written in the same code? (a) EMPD (b) DPME (c) CKNB (d) DLOC
- 13.If DESK is written as WVHP, how is TOYS written in the same code? (a) UPZT (b) HMCI (c) GLBH (d) FKAG
- 14.If SUN is written as HFM, how is CAT written in the same code? (a) YAH (b) XZG (c) WYF (d) DBU
- 15.If WIND is written as DNIW, how is DOG written in the same code? (a) FNC (b) GOD (c) EPH (d) HPE
- 16.If KITE is written as GVKM, how is DESK written in the same code? (a) FGUM (b) KSED (c) MUGF (d) IQCB
- 17.If NEST is written as UTFO, how is TOYS written in the same code? (a) SYOT (b) TZPU (c) UPZT (d) RXNS
- 18.If WIND is written as DRMW, how is TREE written in the same code? (a) GIVV (b) HJWW (c) USFF (d) FHUU
- 19.If LION is written as JGML, how is LAMP written in the same code? (a) IXJM (b) KZLO (c) NCOR (d) JYKN
- 20.If GOLD is written as TLOW, how is KITE written in the same code? (a) OQFU (b) QSHW (c) PRGV (d) LJUF
- 21.If STAR is written as RATS, how is LION written in the same code? (a) MJPO (b) OPJM (c) MNHK (d) NOIL
- 22.If BOAT is written as ERDW, how is NEST written in the same code? (a) PGUV (b) RIWX (c) KBPQ (d) QHVW
- 23.If WIND is written as UGLB, how is DOG written in the same code? (a) BME (b) ALD (c) FQI (d) CNF
- 24.If PARK is written as MTCR, how is RAIN written in the same code? (a) NIAR (b) LGYP (c) PKCT (d) TCKP
- 25.If MOON is written as MNNL, how is GOLD written in the same code? (a) DLOG (b) FNKC (c) EMPH (d) CKNF
- 26.If DOG is written as WLT, how is NEST written in the same code? (a) MVHG (b) OFTU (c) NWIH (d) LUGF
- 27.If DOG is written as WLT, how is TOYS written in the same code? (a) UPZT (b) GLBH (c) FKAG (d) HMCI
- 28.If PEN is written as KVM, how is MILK written in the same code? (a) NJML (b) NROP (c) OSPQ (d) MQNO
- 29.If CAKE is written as AYIC, how is WIND written in the same code? (a) YKPF (b) UGLB (c) TFKA (d) VHMC
- 30.If NEST is written as VUGP, how is LAMP written in the same code? (a) PMAL (b) ROCN (c) NKYJ (d) NCOR
- 31.If DRUM is written as WIFN, how is MOON written in the same code? (a) NPPO (b) OMMN (c) NLLM (d) MKKL
- 32.If TREE is written as VTGG, how is SHIP written in the same code? (a) VKLS (b) QFGN (c) UJKR (d) TIJQ
- 33.If SUN is written as OVT, how is BOOK written in the same code? (a) JNNA (b) CPPL (c) KOOB (d) LPPC
- 34.If DESK is written as WVHP, how is SHIP written in the same code? (a) GRQJ (b) TIJQ (c) HSRK (d) ITSL
- 35.If BOOK is written as KOOB, how is KITE written in the same code? (a) DSHJ (b) FUJL (c) ETIK (d) LJUF
- 36.If STAR is written as UVCT, how is KITE written in the same code? (a) IGRC (b) NLWH (c) LJUF (d) MKVG
- 37.If PEN is written as QFO, how is SUN written in the same code? (a) TVO (b) OVT (c) RTM (d) UWP
- 38.If PARK is written as MTCR, how is BALL written in the same code? (a) DCNN (b) NNCD (c) JJYZ (d) LLAB
- 39.If BELL is written as YVOO, how is GOLD written in the same code? (a) UMPX (b) TLOW (c) SKNV (d) HPME
- 40.If CAKE is written as FLBD, how is HAND written in the same code? (a) DNAH (b) EOBI (c) IBOE (d) CMZG
Answer key
- QFGN
- PQKN
- HPSG
- TAC
- EQNF
- RTM
- DDQS
- LCQR
- QFNK
- EHOO
- UGLB
- DLOC
- GLBH
- XZG
- GOD
- MUGF
- TZPU
- GIVV
- JYKN
- PRGV
- NOIL
- QHVW
- BME
- PKCT
- CKNF
- MVHG
- GLBH
- NROP
- UGLB
- ROCN
- NLLM
- UJKR
- LPPC
- HSRK
- ETIK
- MKVG
- TVO
- NNCD
- TLOW
- EOBI
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