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 GOLD is written as IQNF, how is SUN written in the same code? (a) VXQ (b) TVO (c) UWP (d) QSL
- 2.If MOON is written as PRRQ, how is HAND written in the same code? (a) EXKA (b) KDQG (c) JCPF (d) LERH
- 3.If FISH is written as HSIF, how is DESK written in the same code? (a) KSED (b) EFTL (c) JRDC (d) LTFE
- 4.If TREE is written as EERT, how is STAR written in the same code? (a) TUBS (b) SBUT (c) RATS (d) QZSR
- 5.If GOLD is written as DLOG, how is RAIN written in the same code? (a) OJBS (b) SBJO (c) NIAR (d) MHZQ
- 6.If WIND is written as EOJX, how is SUN written in the same code? (a) OVT (b) NUS (c) MTR (d) TVO
- 7.If BOAT is written as YLZG, how is DRUM written in the same code? (a) XJGO (b) WIFN (c) VHEM (d) ESVN
- 8.If MILK is written as KLIM, how is CAT written in the same code? (a) SZB (b) DBU (c) TAC (d) UBD
- 9.If BELL is written as LLEB, how is SHIP written in the same code? (a) OHGR (b) PIHS (c) TIJQ (d) QJIT
- 10.If MILK is written as JKHL, how is COLD written in the same code? (a) BNKC (b) EMPD (c) CKNB (d) DLOC
- 11.If MILK is written as NJML, how is LAMP written in the same code? (a) NCOR (b) MBNQ (c) KZLO (d) QNBM
- 12.If JUMP is written as KVNQ, how is LION written in the same code? (a) OPJM (b) NKQP (c) MJPO (d) KHNM
- 13.If MOON is written as NLLM, how is STAR written in the same code? (a) GFYH (b) IHAJ (c) TUBS (d) HGZI
- 14.If LION is written as OPJM, how is DOG written in the same code? (a) HPE (b) EPH (c) GOD (d) FNC
- 15.If HAND is written as DNAH, how is TREE written in the same code? (a) DDQS (b) FFSU (c) USFF (d) EERT
- 16.If PARK is written as OZQJ, how is FISH written in the same code? (a) EHRG (b) DGQF (c) GJTI (d) FISH
- 17.If JUMP is written as LWOR, how is SUN written in the same code? (a) TVO (b) UWP (c) QSL (d) VXQ
- 18.If SHIP is written as PIHS, how is STAR written in the same code? (a) QZSR (b) TUBS (c) RATS (d) SBUT
- 19.If FISH is written as GRHE, how is SUN written in the same code? (a) MTR (b) OVT (c) NUS (d) RTM
- 20.If FISH is written as GRHE, how is TOYS written in the same code? (a) RXNS (b) SYOT (c) TZPU (d) SNXR
- 21.If TOYS is written as VQAU, how is CAT written in the same code? (a) ECV (b) FDW (c) AYR (d) DBU
- 22.If BOOK is written as KOOB, how is SUN written in the same code? (a) OVT (b) NUS (c) MTR (d) TVO
- 23.If BOOK is written as KOOB, how is LAMP written in the same code? (a) OLZK (b) MBNQ (c) QNBM (d) PMAL
- 24.If WIND is written as CMHV, how is DOG written in the same code? (a) CNF (b) FNC (c) GOD (d) HPE
- 25.If DRUM is written as WIFN, how is BELL written in the same code? (a) ZWPP (b) CFMM (c) YVOO (d) XUNN
- 26.If COLD is written as FNQE, how is GOLD written in the same code? (a) BJME (b) DLOG (c) FNQI (d) IQNF
- 27.If BALL is written as LLAB, how is LAMP written in the same code? (a) PMAL (b) QNBM (c) MBNQ (d) OLZK
- 28.If BELL is written as YVOO, how is RAIN written in the same code? (a) HYQL (b) IZRM (c) SBJO (d) JASN
- 29.If DRUM is written as CQTL, how is FISH written in the same code? (a) FISH (b) GJTI (c) DGQF (d) EHRG
- 30.If SUN is written as UWP, how is PEN written in the same code? (a) RGP (b) NCL (c) QFO (d) SHQ
- 31.If DOG is written as FNC, how is MILK written in the same code? (a) LMJN (b) KLIM (c) LHKJ (d) JKHL
- 32.If FROG is written as IURJ, how is NEST written in the same code? (a) QHVW (b) PGUV (c) KBPQ (d) RIWX
- 33.If TOYS is written as UPZT, how is STAR written in the same code? (a) UVCT (b) RSZQ (c) TUBS (d) SBUT
- 34.If WIND is written as DNIW, how is PARK written in the same code? (a) QBSL (b) LSBQ (c) JQZO (d) KRAP
- 35.If HAND is written as SZMW, how is SUN written in the same code? (a) IGN (b) TVO (c) GEL (d) HFM
- 36.If TREE is written as GIVV, how is BOOK written in the same code? (a) CPPL (b) YLLP (c) XKKO (d) ZMMQ
- 37.If KITE is written as IGRC, how is MOON written in the same code? (a) JLLK (b) LNNM (c) KMML (d) OQQP
- 38.If CAT is written as TAC, how is BOAT written in the same code? (a) CPBU (b) SZNA (c) TAOB (d) UBPC
- 39.If NEST is written as MVHG, how is HAND written in the same code? (a) RYLV (b) IBOE (c) SZMW (d) TANX
- 40.If MILK is written as JKHL, how is BOOK written in the same code? (a) ANNJ (b) KOOB (c) JNNA (d) LPPC
Answer key
- UWP
- KDQG
- KSED
- RATS
- NIAR
- OVT
- WIFN
- TAC
- PIHS
- CKNB
- MBNQ
- MJPO
- HGZI
- HPE
- EERT
- EHRG
- UWP
- RATS
- MTR
- RXNS
- ECV
- NUS
- PMAL
- FNC
- YVOO
- FNQI
- PMAL
- IZRM
- EHRG
- RGP
- JKHL
- QHVW
- TUBS
- KRAP
- HFM
- YLLP
- KMML
- TAOB
- SZMW
- JNNA
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