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 BOOK is written as LPPC, how is DOG written in the same code? (a) GOD (b) EPH (c) FNC (d) HPE
- 2.If BALL is written as YZOO, how is SUN written in the same code? (a) IGN (b) HFM (c) TVO (d) GEL
- 3.If TREE is written as GIVV, how is PEN written in the same code? (a) KVM (b) LWN (c) JUL (d) QFO
- 4.If LION is written as NOIL, how is BOOK written in the same code? (a) LPPC (b) KOOB (c) CPPL (d) JNNA
- 5.If CAT is written as UBD, how is LION written in the same code? (a) MJPO (b) OPJM (c) NOIL (d) MNHK
- 6.If SUN is written as HFM, how is LAMP written in the same code? (a) PAOL (b) NYMJ (c) OZNK (d) MBNQ
- 7.If PEN is written as KVM, how is KITE written in the same code? (a) PRGV (b) LJUF (c) QSHW (d) OQFU
- 8.If JUMP is written as ROWL, how is STAR written in the same code? (a) PYRQ (b) UVCT (c) TCVU (d) RATS
- 9.If BOAT is written as UBPC, how is COLD written in the same code? (a) DPME (b) CKNB (c) EMPD (d) DLOC
- 10.If BOAT is written as CPBU, how is LAMP written in the same code? (a) QNBM (b) NCOR (c) MBNQ (d) KZLO
- 11.If LAMP is written as ROCN, how is PARK written in the same code? (a) KRAP (b) IPYN (c) MTCR (d) RCTM
- 12.If MOON is written as NLLM, how is PEN written in the same code? (a) KVM (b) LWN (c) JUL (d) QFO
- 13.If BALL is written as EDOO, how is DOG written in the same code? (a) GRJ (b) ALD (c) HSK (d) FQI
- 14.If DOG is written as IQF, how is WIND written in the same code? (a) BLGU (b) DNIW (c) FPKY (d) YKPF
- 15.If JUMP is written as OLTI, how is CAKE written in the same code? (a) BZJD (b) DJZB (c) EKAC (d) FLBD
- 16.If CAKE is written as XZPV, how is FISH written in the same code? (a) TQGR (b) URHS (c) VSIT (d) GJTI
- 17.If TREE is written as EERT, how is KITE written in the same code? (a) LJUF (b) FUJL (c) DSHJ (d) ETIK
- 18.If CAT is written as XZG, how is BOAT written in the same code? (a) XKYF (b) YLZG (c) CPBU (d) ZMAH
- 19.If HAND is written as SZMW, how is FISH written in the same code? (a) VSIT (b) URHS (c) GJTI (d) TQGR
- 20.If TREE is written as SQDD, how is NEST written in the same code? (a) LCQR (b) NEST (c) MDRS (d) OFTU
- 21.If NEST is written as MDRS, how is TREE written in the same code? (a) RPCC (b) SQDD (c) TREE (d) USFF
- 22.If HAND is written as EOBI, how is WIND written in the same code? (a) XJOE (b) EOJX (c) DNIW (d) CMHV
- 23.If LAMP is written as OZNK, how is TREE written in the same code? (a) USFF (b) HJWW (c) GIVV (d) FHUU
- 24.If FROG is written as FNQE, how is CAKE written in the same code? (a) FLBD (b) EKAC (c) DJZB (d) BZJD
- 25.If DOG is written as HPE, how is STAR written in the same code? (a) SBUT (b) RATS (c) TUBS (d) QZSR
- 26.If MILK is written as NJML, how is DRUM written in the same code? (a) ESVN (b) FTWO (c) CQTL (d) NVSE
- 27.If STAR is written as QZSR, how is HAND written in the same code? (a) GZMC (b) DNAH (c) CMZG (d) EOBI
- 28.If DOG is written as WLT, how is BELL written in the same code? (a) XUNN (b) ZWPP (c) CFMM (d) YVOO
- 29.If SUN is written as OVT, how is BALL written in the same code? (a) LLAB (b) KKZA (c) MMBC (d) CBMM
- 30.If KITE is written as LJUF, how is CAT written in the same code? (a) UBD (b) DBU (c) BZS (d) ECV
- 31.If TOYS is written as SYOT, how is BOOK written in the same code? (a) LPPC (b) CPPL (c) JNNA (d) KOOB
- 32.If BOOK is written as ANNJ, how is KITE written in the same code? (a) KITE (b) JHSD (c) IGRC (d) LJUF
- 33.If MOON is written as PQQO, how is FROG written in the same code? (a) GORF (b) IQTH (c) HTQI (d) EMPD
- 34.If BALL is written as NNCD, how is LAMP written in the same code? (a) ROCN (b) NCOR (c) PMAL (d) NKYJ
- 35.If BALL is written as NNCD, how is MOON written in the same code? (a) NOOM (b) PQQO (c) OQQP (d) LMMK
- 36.If TREE is written as DDQS, how is SHIP written in the same code? (a) OHGR (b) RGHO (c) PIHS (d) QJIT
- 37.If KITE is written as GVKM, how is SHIP written in the same code? (a) PIHS (b) UJKR (c) NGFQ (d) RKJU
- 38.If PARK is written as KZIP, how is SUN written in the same code? (a) IGN (b) TVO (c) HFM (d) GEL
- 39.If BALL is written as LLAB, how is MILK written in the same code? (a) KLIM (b) NJML (c) LMJN (d) JKHL
- 40.If TREE is written as GIVV, how is KITE written in the same code? (a) PRGV (b) LJUF (c) QSHW (d) OQFU
Answer key
- HPE
- HFM
- KVM
- KOOB
- OPJM
- OZNK
- PRGV
- TCVU
- EMPD
- MBNQ
- MTCR
- KVM
- GRJ
- FPKY
- DJZB
- URHS
- ETIK
- YLZG
- URHS
- MDRS
- SQDD
- EOJX
- GIVV
- DJZB
- SBUT
- ESVN
- CMZG
- YVOO
- MMBC
- DBU
- KOOB
- JHSD
- IQTH
- ROCN
- PQQO
- OHGR
- RKJU
- HFM
- KLIM
- PRGV
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