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 TREE is written as GIVV, how is STAR written in the same code? (a) IHAJ (b) GFYH (c) TUBS (d) HGZI
- 2.If DESK is written as WVHP, how is FISH written in the same code? (a) VSIT (b) TQGR (c) GJTI (d) URHS
- 3.If LION is written as ORLM, how is SUN written in the same code? (a) TVO (b) HFM (c) IGN (d) GEL
- 4.If HAND is written as CMZG, how is JUMP written in the same code? (a) PMUJ (b) QNVK (c) OLTI (d) ITLO
- 5.If LAMP is written as PMAL, how is MOON written in the same code? (a) OPPN (b) MNNL (c) NPPO (d) NOOM
- 6.If WIND is written as UGLB, how is GOLD written in the same code? (a) FNKC (b) IQNF (c) DLIA (d) EMJB
- 7.If BOOK is written as MQQD, how is PARK written in the same code? (a) IPYN (b) KRAP (c) RCTM (d) MTCR
- 8.If JUMP is written as OLTI, how is SUN written in the same code? (a) OVT (b) NUS (c) RTM (d) MTR
- 9.If CAT is written as XZG, how is BOOK written in the same code? (a) CPPL (b) YLLP (c) XKKO (d) ZMMQ
- 10.If SHIP is written as PIHS, how is CAT written in the same code? (a) DBU (b) SZB (c) TAC (d) UBD
- 11.If RAIN is written as UDLQ, how is MILK written in the same code? (a) JFIH (b) QMPO (c) PLON (d) OKNM
- 12.If GOLD is written as FNKC, how is DOG written in the same code? (a) CNF (b) EPH (c) BME (d) DOG
- 13.If BELL is written as YVOO, how is DRUM written in the same code? (a) WIFN (b) VHEM (c) XJGO (d) ESVN
- 14.If NEST is written as TSEN, how is CAKE written in the same code? (a) FLBD (b) EKAC (c) DBLF (d) DJZB
- 15.If SHIP is written as OHGR, how is PEN written in the same code? (a) OFQ (b) NEP (c) ODM (d) MDO
- 16.If FISH is written as URHS, how is SHIP written in the same code? (a) GRQJ (b) TIJQ (c) HSRK (d) ITSL
- 17.If RAIN is written as IZRM, how is SUN written in the same code? (a) TVO (b) GEL (c) HFM (d) IGN
- 18.If KITE is written as PRGV, how is CAT written in the same code? (a) YAH (b) XZG (c) DBU (d) WYF
- 19.If SHIP is written as QJIT, how is LION written in the same code? (a) MNHK (b) MJPO (c) OPJM (d) NOIL
- 20.If COLD is written as DLOC, how is BOOK written in the same code? (a) JNNA (b) LPPC (c) KOOB (d) CPPL
- 21.If STAR is written as TCVU, how is BALL written in the same code? (a) JJYZ (b) DCNN (c) LLAB (d) NNCD
- 22.If BELL is written as LLEB, how is FROG written in the same code? (a) GSPH (b) FNQE (c) GORF (d) HPSG
- 23.If COLD is written as EMPD, how is FISH written in the same code? (a) GJTI (b) HSIF (c) ITJG (d) GRHE
- 24.If MOON is written as NOOM, how is COLD written in the same code? (a) DLOC (b) EMPD (c) DPME (d) CKNB
- 25.If LION is written as OLRQ, how is NEST written in the same code? (a) RIWX (b) PGUV (c) KBPQ (d) QHVW
- 26.If BOOK is written as LPPC, how is MOON written in the same code? (a) NPPO (b) MNNL (c) NOOM (d) OPPN
- 27.If STAR is written as HGZI, how is MILK written in the same code? (a) NJML (b) MQNO (c) OSPQ (d) NROP
- 28.If SUN is written as NUS, how is PEN written in the same code? (a) MDO (b) QFO (c) NEP (d) OFQ
- 29.If SUN is written as HFM, how is DESK written in the same code? (a) EFTL (b) XWIQ (c) WVHP (d) VUGO
- 30.If NEST is written as MVHG, how is STAR written in the same code? (a) IHAJ (b) TUBS (c) GFYH (d) HGZI
- 31.If HAND is written as JCPF, how is WIND written in the same code? (a) YKPF (b) UGLB (c) XJOE (d) ZLQG
- 32.If BALL is written as MMBC, how is JUMP written in the same code? (a) PMUJ (b) KVNQ (c) QNVK (d) OLTI
- 33.If BOAT is written as YLZG, how is KITE written in the same code? (a) OQFU (b) QSHW (c) LJUF (d) PRGV
- 34.If CAT is written as ECV, how is STAR written in the same code? (a) TUBS (b) QRYP (c) VWDU (d) UVCT
- 35.If DOG is written as WLT, how is MILK written in the same code? (a) OSPQ (b) MQNO (c) NJML (d) NROP
- 36.If TREE is written as RPCC, how is LAMP written in the same code? (a) KZLO (b) IXJM (c) JYKN (d) NCOR
- 37.If HAND is written as FPCJ, how is RAIN written in the same code? (a) NIAR (b) TCKP (c) PKCT (d) LGYP
- 38.If PEN is written as QFO, how is TREE written in the same code? (a) SQDD (b) FFSU (c) USFF (d) VTGG
- 39.If BALL is written as NNCD, how is FROG written in the same code? (a) HTQI (b) IQTH (c) EMPD (d) GORF
- 40.If STAR is written as SBUT, how is SUN written in the same code? (a) TVO (b) MTR (c) OVT (d) NUS
Answer key
- HGZI
- URHS
- HFM
- OLTI
- NOOM
- EMJB
- MTCR
- MTR
- YLLP
- TAC
- PLON
- CNF
- WIFN
- EKAC
- MDO
- HSRK
- HFM
- XZG
- OPJM
- KOOB
- NNCD
- GORF
- ITJG
- DLOC
- QHVW
- OPPN
- NROP
- NEP
- WVHP
- HGZI
- YKPF
- QNVK
- PRGV
- UVCT
- NROP
- JYKN
- PKCT
- USFF
- IQTH
- OVT
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