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 PWU, how is FISH written in the same code? (a) HSIF (b) JUKH (c) FQGD (d) HKUJ
- 2.If KITE is written as LJUF, how is SUN written in the same code? (a) OVT (b) RTM (c) UWP (d) TVO
- 3.If FISH is written as HSIF, how is DOG written in the same code? (a) EPH (b) HPE (c) GOD (d) FNC
- 4.If FISH is written as GRHE, how is CAT written in the same code? (a) BZS (b) UBD (c) SZB (d) TAC
- 5.If DRUM is written as MURD, how is FISH written in the same code? (a) ITJG (b) GJTI (c) GRHE (d) HSIF
- 6.If PARK is written as KRAP, how is KITE written in the same code? (a) DSHJ (b) LJUF (c) FUJL (d) ETIK
- 7.If STAR is written as UVCT, how is BELL written in the same code? (a) DGNN (b) CFMM (c) ZCJJ (d) EHOO
- 8.If JUMP is written as ROWL, how is GOLD written in the same code? (a) BJME (b) FNQI (c) DLOG (d) IQNF
- 9.If TREE is written as DDQS, how is HAND written in the same code? (a) CMZG (b) EOBI (c) DNAH (d) GZMC
- 10.If PARK is written as KRAP, how is COLD written in the same code? (a) DLOC (b) DPME (c) EMPD (d) CKNB
- 11.If CAKE is written as FLBD, how is PEN written in the same code? (a) QFO (b) NEP (c) MDO (d) OFQ
- 12.If LAMP is written as NCOR, how is COLD written in the same code? (a) FROG (b) AMJB (c) DPME (d) EQNF
- 13.If DESK is written as WVHP, how is GOLD written in the same code? (a) UMPX (b) HPME (c) SKNV (d) TLOW
- 14.If FROG is written as GORF, how is RAIN written in the same code? (a) OJBS (b) MHZQ (c) NIAR (d) SBJO
- 15.If PARK is written as KZIP, how is BOAT written in the same code? (a) XKYF (b) ZMAH (c) YLZG (d) CPBU
- 16.If BELL is written as LLEB, how is FROG written in the same code? (a) GORF (b) HPSG (c) GSPH (d) FNQE
- 17.If BALL is written as LLAB, how is FISH written in the same code? (a) GRHE (b) HSIF (c) GJTI (d) ITJG
- 18.If FISH is written as GRHE, how is BALL written in the same code? (a) MMBC (b) AZKK (c) LLAB (d) KKZA
- 19.If SUN is written as HFM, how is MOON written in the same code? (a) MKKL (b) NPPO (c) NLLM (d) OMMN
- 20.If DESK is written as KSED, how is FISH written in the same code? (a) ITJG (b) GJTI (c) GRHE (d) HSIF
- 21.If TREE is written as WUHH, how is LION written in the same code? (a) IFLK (b) NKQP (c) OLRQ (d) PMSR
- 22.If CAKE is written as XZPV, how is MILK written in the same code? (a) NJML (b) OSPQ (c) MQNO (d) NROP
- 23.If BOOK is written as JNNA, how is COLD written in the same code? (a) BNKC (b) DLOC (c) EMPD (d) CKNB
- 24.If FROG is written as GORF, how is TOYS written in the same code? (a) SYOT (b) TZPU (c) UPZT (d) RXNS
- 25.If TREE is written as RPCC, how is DRUM written in the same code? (a) AORJ (b) BPSK (c) FTWO (d) CQTL
- 26.If KITE is written as GVKM, how is BALL written in the same code? (a) NNCD (b) DCNN (c) LLAB (d) JJYZ
- 27.If PARK is written as SDUN, how is HAND written in the same code? (a) LERH (b) EXKA (c) JCPF (d) KDQG
- 28.If STAR is written as SBUT, how is MOON written in the same code? (a) OPPN (b) NPPO (c) NOOM (d) MNNL
- 29.If BOOK is written as CPPL, how is COLD written in the same code? (a) EMPD (b) BNKC (c) EQNF (d) DPME
- 30.If KITE is written as ETIK, how is SUN written in the same code? (a) OVT (b) MTR (c) TVO (d) NUS
- 31.If PARK is written as JQZO, how is BOOK written in the same code? (a) LPPC (b) KOOB (c) ANNJ (d) JNNA
- 32.If STAR is written as UVCT, how is CAT written in the same code? (a) FDW (b) AYR (c) ECV (d) DBU
- 33.If NEST is written as MVHG, how is DESK written in the same code? (a) EFTL (b) XWIQ (c) VUGO (d) WVHP
- 34.If LAMP is written as OZNK, how is BOOK written in the same code? (a) CPPL (b) XKKO (c) YLLP (d) ZMMQ
- 35.If NEST is written as UTFO, how is RAIN written in the same code? (a) SBJO (b) MHZQ (c) NIAR (d) OJBS
- 36.If STAR is written as QZSR, how is COLD written in the same code? (a) CKNB (b) BNKC (c) EMPD (d) DLOC
- 37.If FROG is written as FNQE, how is FISH written in the same code? (a) GRHE (b) EHRG (c) HSIF (d) ITJG
- 38.If DOG is written as FQI, how is NEST written in the same code? (a) LCQR (b) OFTU (c) QHVW (d) PGUV
- 39.If JUMP is written as MXPS, how is WIND written in the same code? (a) TFKA (b) ZLQG (c) YKPF (d) AMRH
- 40.If MILK is written as LMJN, how is SUN written in the same code? (a) MTR (b) NUS (c) TVO (d) OVT
Answer key
- JUKH
- TVO
- GOD
- SZB
- HSIF
- ETIK
- DGNN
- FNQI
- CMZG
- DLOC
- OFQ
- EQNF
- TLOW
- NIAR
- YLZG
- GORF
- HSIF
- KKZA
- NLLM
- HSIF
- OLRQ
- NROP
- CKNB
- SYOT
- BPSK
- NNCD
- KDQG
- OPPN
- DPME
- NUS
- JNNA
- ECV
- WVHP
- YLLP
- OJBS
- CKNB
- GRHE
- PGUV
- ZLQG
- OVT
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