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 SUN is written as NUS, how is NEST written in the same code? (a) OFTU (b) UTFO (c) SRDM (d) TSEN
- 2.If PEN is written as MDO, how is SHIP written in the same code? (a) RGHO (b) QJIT (c) OHGR (d) PIHS
- 3.If STAR is written as RATS, how is JUMP written in the same code? (a) PMUJ (b) OLTI (c) KVNQ (d) QNVK
- 4.If TREE is written as GIVV, how is BOOK written in the same code? (a) XKKO (b) ZMMQ (c) CPPL (d) YLLP
- 5.If CAT is written as SZB, how is MOON written in the same code? (a) OPPN (b) LNNM (c) MNNL (d) NOOM
- 6.If NEST is written as MVHG, how is RAIN written in the same code? (a) JASN (b) IZRM (c) HYQL (d) SBJO
- 7.If WIND is written as YKPF, how is BELL written in the same code? (a) EHOO (b) DGNN (c) ZCJJ (d) CFMM
- 8.If DOG is written as GOD, how is MILK written in the same code? (a) NJML (b) LMJN (c) KLIM (d) JKHL
- 9.If BOAT is written as TAOB, how is DESK written in the same code? (a) JRDC (b) KSED (c) EFTL (d) LTFE
- 10.If PEN is written as QFO, how is DRUM written in the same code? (a) ESVN (b) FTWO (c) NVSE (d) CQTL
- 11.If TREE is written as EERT, how is BOOK written in the same code? (a) CPPL (b) KOOB (c) JNNA (d) LPPC
- 12.If TOYS is written as RMWQ, how is DOG written in the same code? (a) FQI (b) ALD (c) BME (d) CNF
- 13.If PARK is written as RCTM, how is CAKE written in the same code? (a) FDNH (b) DBLF (c) ECMG (d) AYIC
- 14.If TREE is written as GGTV, how is TOYS written in the same code? (a) UAQV (b) VQAU (c) SYOT (d) QWMR
- 15.If PEN is written as MDO, how is RAIN written in the same code? (a) OJBS (b) QZHM (c) NIAR (d) MHZQ
- 16.If FISH is written as GRHE, how is KITE written in the same code? (a) JHSD (b) ETIK (c) DSHJ (d) FUJL
- 17.If GOLD is written as EMPH, how is CAKE written in the same code? (a) FLBD (b) DBLF (c) EKAC (d) DJZB
- 18.If DESK is written as LTFE, how is TOYS written in the same code? (a) SYOT (b) RXNS (c) UPZT (d) TZPU
- 19.If LAMP is written as PMAL, how is FROG written in the same code? (a) GSPH (b) FNQE (c) GORF (d) HPSG
- 20.If WIND is written as DNIW, how is LAMP written in the same code? (a) OLZK (b) MBNQ (c) QNBM (d) PMAL
- 21.If GOLD is written as JROG, how is FISH written in the same code? (a) HKUJ (b) JMWL (c) ILVK (d) CFPE
- 22.If NEST is written as TSEN, how is KITE written in the same code? (a) FUJL (b) LJUF (c) DSHJ (d) ETIK
- 23.If MOON is written as NOOM, how is FROG written in the same code? (a) GSPH (b) FNQE (c) GORF (d) HPSG
- 24.If BALL is written as YZOO, how is MILK written in the same code? (a) NROP (b) OSPQ (c) MQNO (d) NJML
- 25.If FISH is written as URHS, how is HAND written in the same code? (a) IBOE (b) RYLV (c) TANX (d) SZMW
- 26.If DOG is written as HPE, how is LAMP written in the same code? (a) PMAL (b) OLZK (c) MBNQ (d) QNBM
- 27.If FISH is written as HSIF, how is GOLD written in the same code? (a) DLOG (b) EMPH (c) HPME (d) CKNF
- 28.If HAND is written as GZMC, how is CAT written in the same code? (a) AYR (b) DBU (c) BZS (d) CAT
- 29.If PEN is written as MDO, how is DRUM written in the same code? (a) MURD (b) CQTL (c) LTQC (d) NVSE
- 30.If BELL is written as LLEB, how is COLD written in the same code? (a) DPME (b) DLOC (c) CKNB (d) EMPD
- 31.If LAMP is written as PMAL, how is TREE written in the same code? (a) FFSU (b) USFF (c) EERT (d) DDQS
- 32.If SUN is written as OVT, how is BOOK written in the same code? (a) CPPL (b) JNNA (c) LPPC (d) KOOB
- 33.If CAT is written as SZB, how is NEST written in the same code? (a) MDRS (b) SRDM (c) UTFO (d) TSEN
- 34.If WIND is written as YKPF, how is NEST written in the same code? (a) LCQR (b) OFTU (c) QHVW (d) PGUV
- 35.If GOLD is written as CKNF, how is SUN written in the same code? (a) OVT (b) NUS (c) MTR (d) RTM
- 36.If DRUM is written as WIFN, how is CAKE written in the same code? (a) YAQW (b) XZPV (c) WYOU (d) DBLF
- 37.If BOAT is written as UBPC, how is LION written in the same code? (a) MNHK (b) NOIL (c) OPJM (d) MJPO
- 38.If RAIN is written as SBJO, how is SHIP written in the same code? (a) TIJQ (b) UJKR (c) RGHO (d) QJIT
- 39.If JUMP is written as PMUJ, how is BALL written in the same code? (a) MMBC (b) KKZA (c) CBMM (d) LLAB
- 40.If JUMP is written as QFNK, how is TREE written in the same code? (a) GIVV (b) USFF (c) FHUU (d) HJWW
Answer key
- TSEN
- OHGR
- PMUJ
- YLLP
- MNNL
- IZRM
- DGNN
- KLIM
- KSED
- ESVN
- KOOB
- BME
- ECMG
- UAQV
- MHZQ
- DSHJ
- FLBD
- TZPU
- GORF
- PMAL
- ILVK
- ETIK
- GORF
- NROP
- SZMW
- QNBM
- DLOG
- BZS
- LTQC
- DLOC
- EERT
- LPPC
- SRDM
- PGUV
- MTR
- XZPV
- OPJM
- TIJQ
- LLAB
- GIVV
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