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 PARK is written as KZIP, how is CAKE written in the same code? (a) WYOU (b) YAQW (c) DBLF (d) XZPV
- 2.If BALL is written as LLAB, how is BOAT written in the same code? (a) CPBU (b) UBPC (c) TAOB (d) SZNA
- 3.If PARK is written as OZQJ, how is SUN written in the same code? (a) TVO (b) RTM (c) QSL (d) SUN
- 4.If PARK is written as KZIP, how is COLD written in the same code? (a) YMPX (b) XLOW (c) WKNV (d) DPME
- 5.If SHIP is written as TIJQ, how is BALL written in the same code? (a) DCNN (b) CBMM (c) AZKK (d) MMBC
- 6.If COLD is written as XLOW, how is SUN written in the same code? (a) GEL (b) TVO (c) IGN (d) HFM
- 7.If CAT is written as VCE, how is BELL written in the same code? (a) DGNN (b) JJCZ (c) LLEB (d) NNGD
- 8.If STAR is written as QRYP, how is TREE written in the same code? (a) SQDD (b) RPCC (c) QOBB (d) VTGG
- 9.If STAR is written as TUBS, how is PEN written in the same code? (a) OFQ (b) QFO (c) ODM (d) RGP
- 10.If DRUM is written as ESVN, how is TREE written in the same code? (a) USFF (b) SQDD (c) FFSU (d) VTGG
- 11.If WIND is written as XJOE, how is CAT written in the same code? (a) BZS (b) UBD (c) ECV (d) DBU
- 12.If FISH is written as JUKH, how is GOLD written in the same code? (a) BJME (b) DLOG (c) IQNF (d) FNQI
- 13.If FROG is written as IURJ, how is CAT written in the same code? (a) GEX (b) FDW (c) ECV (d) ZXQ
- 14.If SUN is written as OVT, how is BALL written in the same code? (a) LLAB (b) KKZA (c) CBMM (d) MMBC
- 15.If DRUM is written as BPSK, how is LAMP written in the same code? (a) KZLO (b) NCOR (c) IXJM (d) JYKN
- 16.If WIND is written as DNIW, how is BOOK written in the same code? (a) JNNA (b) CPPL (c) LPPC (d) KOOB
- 17.If RAIN is written as MHZQ, how is MOON written in the same code? (a) NOOM (b) OPPN (c) LNNM (d) MNNL
- 18.If TREE is written as DDQS, how is GOLD written in the same code? (a) FNKC (b) EMPH (c) DLOG (d) CKNF
- 19.If FISH is written as GJTI, how is MOON written in the same code? (a) OQQP (b) NPPO (c) LNNM (d) OPPN
- 20.If DRUM is written as ESVN, how is DOG written in the same code? (a) FQI (b) HPE (c) CNF (d) EPH
- 21.If DRUM is written as GUXP, how is CAKE written in the same code? (a) ZXHB (b) ECMG (c) FDNH (d) GEOI
- 22.If HAND is written as DNAH, how is KITE written in the same code? (a) FUJL (b) DSHJ (c) ETIK (d) LJUF
- 23.If SHIP is written as PIHS, how is WIND written in the same code? (a) XJOE (b) CMHV (c) EOJX (d) DNIW
- 24.If HAND is written as SZMW, how is BOOK written in the same code? (a) XKKO (b) YLLP (c) CPPL (d) ZMMQ
- 25.If RAIN is written as OJBS, how is TREE written in the same code? (a) DDQS (b) USFF (c) FFSU (d) EERT
- 26.If KITE is written as ETIK, how is GOLD written in the same code? (a) DLOG (b) CKNF (c) EMPH (d) HPME
- 27.If KITE is written as FUJL, how is PEN written in the same code? (a) NEP (b) QFO (c) MDO (d) OFQ
- 28.If STAR is written as RATS, how is BOAT written in the same code? (a) TAOB (b) CPBU (c) UBPC (d) SZNA
- 29.If FISH is written as URHS, how is BALL written in the same code? (a) ZAPP (b) YZOO (c) CBMM (d) XYNN
- 30.If DOG is written as WLT, how is SUN written in the same code? (a) IGN (b) HFM (c) TVO (d) GEL
- 31.If TOYS is written as SYOT, how is WIND written in the same code? (a) EOJX (b) DNIW (c) XJOE (d) CMHV
- 32.If CAT is written as DBU, how is SHIP written in the same code? (a) RGHO (b) TIJQ (c) QJIT (d) UJKR
- 33.If KITE is written as PRGV, how is HAND written in the same code? (a) IBOE (b) SZMW (c) RYLV (d) TANX
- 34.If BALL is written as KKZA, how is BOAT written in the same code? (a) SZNA (b) UBPC (c) ANZS (d) TAOB
- 35.If HAND is written as JCPF, how is DRUM written in the same code? (a) FTWO (b) BPSK (c) ESVN (d) GUXP
- 36.If LAMP is written as NCOR, how is FISH written in the same code? (a) DGQF (b) GJTI (c) ILVK (d) HKUJ
- 37.If GOLD is written as EMJB, how is MOON written in the same code? (a) JLLK (b) OQQP (c) LNNM (d) KMML
- 38.If TREE is written as RPCC, how is SHIP written in the same code? (a) PEFM (b) QFGN (c) UJKR (d) RGHO
- 39.If COLD is written as EMPD, how is CAKE written in the same code? (a) FLBD (b) DBLF (c) EKAC (d) DJZB
- 40.If CAT is written as ECV, how is DESK written in the same code? (a) GHVN (b) FGUM (c) BCQI (d) EFTL
Answer key
- XZPV
- TAOB
- RTM
- XLOW
- CBMM
- HFM
- NNGD
- RPCC
- QFO
- USFF
- DBU
- FNQI
- FDW
- MMBC
- JYKN
- KOOB
- MNNL
- CKNF
- NPPO
- EPH
- FDNH
- ETIK
- DNIW
- YLLP
- FFSU
- DLOG
- OFQ
- TAOB
- YZOO
- HFM
- DNIW
- TIJQ
- SZMW
- SZNA
- FTWO
- HKUJ
- KMML
- QFGN
- FLBD
- FGUM
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