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 KITE is written as ETIK, how is BOAT written in the same code? (a) UBPC (b) CPBU (c) TAOB (d) SZNA
- 2.If FROG is written as HPSG, how is KITE written in the same code? (a) LJUF (b) DSHJ (c) ETIK (d) FUJL
- 3.If FISH is written as HSIF, how is CAKE written in the same code? (a) DBLF (b) DJZB (c) EKAC (d) FLBD
- 4.If MILK is written as PLON, how is STAR written in the same code? (a) VWDU (b) PQXO (c) UVCT (d) WXEV
- 5.If SUN is written as RTM, how is TOYS written in the same code? (a) TOYS (b) UPZT (c) RMWQ (d) SNXR
- 6.If LION is written as ORLM, how is BALL written in the same code? (a) CBMM (b) YZOO (c) XYNN (d) ZAPP
- 7.If BELL is written as ZCJJ, how is BOOK written in the same code? (a) YLLH (b) ANNJ (c) ZMMI (d) DQQM
- 8.If KITE is written as NLWH, how is LAMP written in the same code? (a) IXJM (b) PEQT (c) NCOR (d) ODPS
- 9.If PEN is written as PGR, how is STAR written in the same code? (a) TCVU (b) UVCT (c) PYRQ (d) RATS
- 10.If BALL is written as LLAB, how is SHIP written in the same code? (a) TIJQ (b) PIHS (c) OHGR (d) QJIT
- 11.If FROG is written as IQTH, how is PEN written in the same code? (a) LCN (b) PGR (c) RGP (d) NEP
- 12.If GOLD is written as FNKC, how is MOON written in the same code? (a) NPPO (b) LNNM (c) KMML (d) MOON
- 13.If FROG is written as UILT, how is TREE written in the same code? (a) GIVV (b) HJWW (c) FHUU (d) USFF
- 14.If COLD is written as XLOW, how is MOON written in the same code? (a) MKKL (b) OMMN (c) NPPO (d) NLLM
- 15.If BALL is written as YZOO, how is JUMP written in the same code? (a) PEMJ (b) RGOL (c) QFNK (d) KVNQ
- 16.If LION is written as KHNM, how is PEN written in the same code? (a) PEN (b) ODM (c) QFO (d) NCL
- 17.If PEN is written as KVM, how is DRUM written in the same code? (a) XJGO (b) ESVN (c) VHEM (d) WIFN
- 18.If PARK is written as KZIP, how is WIND written in the same code? (a) ESNX (b) CQLV (c) DRMW (d) XJOE
- 19.If BOAT is written as YLZG, how is DESK written in the same code? (a) XWIQ (b) WVHP (c) EFTL (d) VUGO
- 20.If DRUM is written as WIFN, how is LAMP written in the same code? (a) PAOL (b) MBNQ (c) OZNK (d) NYMJ
- 21.If CAKE is written as XZPV, how is STAR written in the same code? (a) TUBS (b) IHAJ (c) HGZI (d) GFYH
- 22.If BOAT is written as YLZG, how is CAT written in the same code? (a) DBU (b) YAH (c) WYF (d) XZG
- 23.If WIND is written as DRMW, how is RAIN written in the same code? (a) HYQL (b) SBJO (c) JASN (d) IZRM
- 24.If BOOK is written as KOOB, how is DESK written in the same code? (a) LTFE (b) KSED (c) EFTL (d) JRDC
- 25.If DOG is written as IQF, how is MOON written in the same code? (a) OQQP (b) PQQO (c) LMMK (d) NOOM
- 26.If JUMP is written as KVNQ, how is WIND written in the same code? (a) EOJX (b) VHMC (c) XJOE (d) YKPF
- 27.If KITE is written as PRGV, how is WIND written in the same code? (a) DRMW (b) CQLV (c) ESNX (d) XJOE
- 28.If RAIN is written as NIAR, how is NEST written in the same code? (a) SRDM (b) OFTU (c) TSEN (d) UTFO
- 29.If STAR is written as RSZQ, how is DOG written in the same code? (a) BME (b) DOG (c) CNF (d) EPH
- 30.If MOON is written as OPPN, how is SHIP written in the same code? (a) PIHS (b) TIJQ (c) QJIT (d) OHGR
- 31.If SHIP is written as PIHS, how is KITE written in the same code? (a) FUJL (b) DSHJ (c) LJUF (d) ETIK
- 32.If CAKE is written as FDNH, how is DRUM written in the same code? (a) FTWO (b) AORJ (c) HVYQ (d) GUXP
- 33.If DOG is written as WLT, how is NEST written in the same code? (a) MVHG (b) LUGF (c) OFTU (d) NWIH
- 34.If RAIN is written as PKCT, how is DESK written in the same code? (a) FGUM (b) IQCB (c) MUGF (d) KSED
- 35.If STAR is written as TUBS, how is FROG written in the same code? (a) HPSG (b) HTQI (c) GSPH (d) EQNF
- 36.If LION is written as MNHK, how is BOOK written in the same code? (a) LPPC (b) ANNJ (c) KOOB (d) JNNA
- 37.If DESK is written as KSED, how is WIND written in the same code? (a) CMHV (b) XJOE (c) DNIW (d) EOJX
- 38.If BOOK is written as DQQM, how is DESK written in the same code? (a) FGUM (b) BCQI (c) EFTL (d) GHVN
- 39.If LION is written as NOIL, how is COLD written in the same code? (a) CKNB (b) DLOC (c) DPME (d) EMPD
- 40.If MOON is written as MNNL, how is PEN written in the same code? (a) NEP (b) ODM (c) MDO (d) OFQ
Answer key
- TAOB
- FUJL
- EKAC
- VWDU
- SNXR
- YZOO
- ZMMI
- ODPS
- TCVU
- PIHS
- PGR
- LNNM
- GIVV
- NLLM
- QFNK
- ODM
- WIFN
- DRMW
- WVHP
- OZNK
- HGZI
- XZG
- IZRM
- KSED
- PQQO
- XJOE
- DRMW
- TSEN
- CNF
- QJIT
- ETIK
- GUXP
- MVHG
- MUGF
- GSPH
- JNNA
- DNIW
- FGUM
- DLOC
- MDO
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