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 FROG is written as GSPH, how is TREE written in the same code? (a) SQDD (b) VTGG (c) FFSU (d) USFF
- 2.If MOON is written as NLLM, how is COLD written in the same code? (a) WKNV (b) XLOW (c) DPME (d) YMPX
- 3.If LION is written as ORLM, how is TOYS written in the same code? (a) FKAG (b) GLBH (c) UPZT (d) HMCI
- 4.If SUN is written as VXQ, how is NEST written in the same code? (a) KBPQ (b) QHVW (c) RIWX (d) PGUV
- 5.If BOAT is written as TAOB, how is LION written in the same code? (a) MJPO (b) OPJM (c) NOIL (d) MNHK
- 6.If PARK is written as NYPI, how is LION written in the same code? (a) NKQP (b) IFLK (c) KHNM (d) JGML
- 7.If LAMP is written as MBNQ, how is FISH written in the same code? (a) HKUJ (b) GJTI (c) ITJG (d) EHRG
- 8.If BOAT is written as SZNA, how is DOG written in the same code? (a) GOD (b) HPE (c) CNF (d) FNC
- 9.If MILK is written as KLIM, how is TOYS written in the same code? (a) RXNS (b) TZPU (c) UPZT (d) SYOT
- 10.If SHIP is written as QJIT, how is NEST written in the same code? (a) TSEN (b) SRDM (c) UTFO (d) OFTU
- 11.If WIND is written as DNIW, how is HAND written in the same code? (a) EOBI (b) DNAH (c) IBOE (d) CMZG
- 12.If BOOK is written as ERRN, how is HAND written in the same code? (a) KDQG (b) LERH (c) EXKA (d) JCPF
- 13.If CAT is written as VCE, how is BALL written in the same code? (a) LLAB (b) JJYZ (c) DCNN (d) NNCD
- 14.If LION is written as ORLM, how is BELL written in the same code? (a) YVOO (b) ZWPP (c) CFMM (d) XUNN
- 15.If SUN is written as NUS, how is MILK written in the same code? (a) NJML (b) LMJN (c) JKHL (d) KLIM
- 16.If DRUM is written as ESVN, how is CAT written in the same code? (a) UBD (b) BZS (c) ECV (d) DBU
- 17.If TREE is written as SQDD, how is LION written in the same code? (a) KHNM (b) JGML (c) LION (d) MJPO
- 18.If CAT is written as XZG, how is BELL written in the same code? (a) ZWPP (b) XUNN (c) YVOO (d) CFMM
- 19.If DOG is written as FNC, how is GOLD written in the same code? (a) FNKC (b) EMPH (c) DLOG (d) CKNF
- 20.If JUMP is written as PMUJ, how is BELL written in the same code? (a) CFMM (b) MMFC (c) LLEB (d) KKDA
- 21.If BOAT is written as TAOB, how is FROG written in the same code? (a) GSPH (b) GORF (c) FNQE (d) HPSG
- 22.If STAR is written as RATS, how is BOAT written in the same code? (a) CPBU (b) TAOB (c) SZNA (d) UBPC
- 23.If TREE is written as FFSU, how is SUN written in the same code? (a) TVO (b) MTR (c) OVT (d) NUS
- 24.If SUN is written as HFM, how is NEST written in the same code? (a) NWIH (b) OFTU (c) LUGF (d) MVHG
- 25.If FISH is written as GRHE, how is CAT written in the same code? (a) SZB (b) TAC (c) UBD (d) BZS
- 26.If CAT is written as SZB, how is COLD written in the same code? (a) CKNB (b) BNKC (c) EMPD (d) DLOC
- 27.If CAKE is written as XZPV, how is KITE written in the same code? (a) OQFU (b) QSHW (c) LJUF (d) PRGV
- 28.If SHIP is written as HSRK, how is MILK written in the same code? (a) OSPQ (b) MQNO (c) NJML (d) NROP
- 29.If COLD is written as DLOC, how is MILK written in the same code? (a) KLIM (b) JKHL (c) LMJN (d) NJML
- 30.If CAKE is written as BZJD, how is TOYS written in the same code? (a) TOYS (b) UPZT (c) RMWQ (d) SNXR
- 31.If LAMP is written as PMAL, how is CAT written in the same code? (a) SZB (b) UBD (c) DBU (d) TAC
- 32.If GOLD is written as CKNF, how is RAIN written in the same code? (a) NIAR (b) MHZQ (c) QZHM (d) OJBS
- 33.If DESK is written as WVHP, how is KITE written in the same code? (a) LJUF (b) PRGV (c) OQFU (d) QSHW
- 34.If PEN is written as NEP, how is DESK written in the same code? (a) LTFE (b) EFTL (c) JRDC (d) KSED
- 35.If MILK is written as LHKJ, how is PARK written in the same code? (a) PARK (b) QBSL (c) OZQJ (d) NYPI
- 36.If NEST is written as PGUV, how is SUN written in the same code? (a) QSL (b) VXQ (c) UWP (d) TVO
- 37.If BOOK is written as YLLP, how is SHIP written in the same code? (a) GRQJ (b) HSRK (c) ITSL (d) TIJQ
- 38.If CAT is written as DBU, how is HAND written in the same code? (a) IBOE (b) EOBI (c) GZMC (d) JCPF
- 39.If PEN is written as OFQ, how is BALL written in the same code? (a) MMBC (b) CBMM (c) KKZA (d) LLAB
- 40.If TOYS is written as WRBV, how is SUN written in the same code? (a) UWP (b) WYR (c) VXQ (d) PRK
Answer key
- USFF
- XLOW
- GLBH
- QHVW
- NOIL
- JGML
- GJTI
- FNC
- SYOT
- UTFO
- DNAH
- KDQG
- NNCD
- YVOO
- KLIM
- DBU
- KHNM
- YVOO
- CKNF
- LLEB
- GORF
- TAOB
- OVT
- MVHG
- SZB
- CKNB
- PRGV
- NROP
- KLIM
- SNXR
- TAC
- MHZQ
- PRGV
- KSED
- OZQJ
- UWP
- HSRK
- IBOE
- MMBC
- VXQ
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