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 WIND is written as DRMW, how is SUN written in the same code? (a) TVO (b) GEL (c) HFM (d) IGN
- 2.If GOLD is written as TLOW, how is KITE written in the same code? (a) LJUF (b) PRGV (c) QSHW (d) OQFU
- 3.If BOAT is written as DQCV, how is CAKE written in the same code? (a) ECMG (b) FDNH (c) AYIC (d) DBLF
- 4.If SHIP is written as VKLS, how is HAND written in the same code? (a) LERH (b) KDQG (c) JCPF (d) EXKA
- 5.If STAR is written as UVCT, how is BALL written in the same code? (a) ZYJJ (b) EDOO (c) CBMM (d) DCNN
- 6.If BOOK is written as YLLP, how is TOYS written in the same code? (a) HMCI (b) FKAG (c) UPZT (d) GLBH
- 7.If BOOK is written as YLLP, how is LAMP written in the same code? (a) MBNQ (b) NYMJ (c) OZNK (d) PAOL
- 8.If SHIP is written as UJKR, how is CAKE written in the same code? (a) FDNH (b) DBLF (c) AYIC (d) ECMG
- 9.If LION is written as ORLM, how is CAT written in the same code? (a) YAH (b) DBU (c) WYF (d) XZG
- 10.If MOON is written as NLLM, how is CAKE written in the same code? (a) YAQW (b) DBLF (c) WYOU (d) XZPV
- 11.If PEN is written as NEP, how is FROG written in the same code? (a) GSPH (b) HPSG (c) GORF (d) FNQE
- 12.If LAMP is written as KZLO, how is BOOK written in the same code? (a) CPPL (b) ZMMI (c) ANNJ (d) BOOK
- 13.If NEST is written as SRDM, how is CAT written in the same code? (a) TAC (b) UBD (c) BZS (d) SZB
- 14.If LAMP is written as OZNK, how is BELL written in the same code? (a) CFMM (b) YVOO (c) XUNN (d) ZWPP
- 15.If DOG is written as CNF, how is PARK written in the same code? (a) OZQJ (b) PARK (c) NYPI (d) QBSL
- 16.If SHIP is written as TIJQ, how is BOOK written in the same code? (a) ANNJ (b) LPPC (c) CPPL (d) DQQM
- 17.If SHIP is written as VKLS, how is TOYS written in the same code? (a) WRBV (b) QLVP (c) XSCW (d) VQAU
- 18.If TOYS is written as SYOT, how is DRUM written in the same code? (a) NVSE (b) MURD (c) LTQC (d) ESVN
- 19.If FISH is written as GRHE, how is RAIN written in the same code? (a) QZHM (b) MHZQ (c) OJBS (d) NIAR
- 20.If FISH is written as URHS, how is PARK written in the same code? (a) JYHO (b) KZIP (c) QBSL (d) LAJQ
- 21.If KITE is written as FUJL, how is BELL written in the same code? (a) CFMM (b) KKDA (c) LLEB (d) MMFC
- 22.If TREE is written as EERT, how is BALL written in the same code? (a) KKZA (b) CBMM (c) LLAB (d) MMBC
- 23.If JUMP is written as KVNQ, how is STAR written in the same code? (a) UVCT (b) RSZQ (c) SBUT (d) TUBS
- 24.If GOLD is written as FNKC, how is BOAT written in the same code? (a) CPBU (b) BOAT (c) ZMYR (d) ANZS
- 25.If FISH is written as HSIF, how is MOON written in the same code? (a) MNNL (b) NPPO (c) OPPN (d) NOOM
- 26.If MILK is written as KLIM, how is BELL written in the same code? (a) CFMM (b) KKDA (c) MMFC (d) LLEB
- 27.If DESK is written as LTFE, how is BOAT written in the same code? (a) TAOB (b) CPBU (c) UBPC (d) SZNA
- 28.If TREE is written as EERT, how is SUN written in the same code? (a) TVO (b) NUS (c) MTR (d) OVT
- 29.If BOOK is written as MQQD, how is FISH written in the same code? (a) JUKH (b) FQGD (c) HKUJ (d) HSIF
- 30.If BELL is written as KKDA, how is LAMP written in the same code? (a) OLZK (b) KZLO (c) QNBM (d) PMAL
- 31.If TOYS is written as VQAU, how is KITE written in the same code? (a) MKVG (b) LJUF (c) NLWH (d) IGRC
- 32.If LAMP is written as ROCN, how is BOAT written in the same code? (a) DQCV (b) TAOB (c) RYMZ (d) VCQD
- 33.If KITE is written as NLWH, how is BOOK written in the same code? (a) DQQM (b) ERRN (c) YLLH (d) FSSO
- 34.If PARK is written as JQZO, how is BALL written in the same code? (a) AZKK (b) MMBC (c) KKZA (d) LLAB
- 35.If JUMP is written as QFNK, how is SHIP written in the same code? (a) GRQJ (b) ITSL (c) HSRK (d) TIJQ
- 36.If MOON is written as PRRQ, how is STAR written in the same code? (a) WXEV (b) UVCT (c) VWDU (d) PQXO
- 37.If WIND is written as DNIW, how is CAKE written in the same code? (a) EKAC (b) DBLF (c) DJZB (d) FLBD
- 38.If FROG is written as UILT, how is BALL written in the same code? (a) ZAPP (b) CBMM (c) XYNN (d) YZOO
- 39.If BELL is written as MMFC, how is HAND written in the same code? (a) EOBI (b) DNAH (c) CMZG (d) IBOE
- 40.If TOYS is written as TZPU, how is FROG written in the same code? (a) GSPH (b) FNQE (c) GORF (d) HPSG
Answer key
- HFM
- PRGV
- ECMG
- KDQG
- DCNN
- GLBH
- OZNK
- ECMG
- XZG
- XZPV
- GORF
- ANNJ
- SZB
- YVOO
- OZQJ
- CPPL
- WRBV
- MURD
- MHZQ
- KZIP
- MMFC
- LLAB
- TUBS
- ANZS
- NOOM
- LLEB
- UBPC
- NUS
- JUKH
- OLZK
- MKVG
- VCQD
- ERRN
- KKZA
- HSRK
- VWDU
- EKAC
- YZOO
- EOBI
- HPSG
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