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 STAR is written as TCVU, how is CAKE written in the same code? (a) ECMG (b) EKAC (c) CIYA (d) GMCE
- 2.If TREE is written as RPCC, how is HAND written in the same code? (a) EXKA (b) JCPF (c) FYLB (d) GZMC
- 3.If CAKE is written as AYIC, how is JUMP written in the same code? (a) ITLO (b) LWOR (c) HSKN (d) GRJM
- 4.If RAIN is written as IZRM, how is LION written in the same code? (a) PSMN (b) NQKL (c) ORLM (d) MJPO
- 5.If BALL is written as LLAB, how is RAIN written in the same code? (a) SBJO (b) MHZQ (c) OJBS (d) NIAR
- 6.If LION is written as JGML, how is PARK written in the same code? (a) OZQJ (b) RCTM (c) NYPI (d) MXOH
- 7.If FROG is written as EQNF, how is FISH written in the same code? (a) DGQF (b) GJTI (c) FISH (d) EHRG
- 8.If GOLD is written as EMPH, how is CAT written in the same code? (a) TAC (b) SZB (c) DBU (d) UBD
- 9.If RAIN is written as IZRM, how is CAT written in the same code? (a) XZG (b) WYF (c) DBU (d) YAH
- 10.If CAT is written as XZG, how is COLD written in the same code? (a) DPME (b) XLOW (c) WKNV (d) YMPX
- 11.If KITE is written as PRGV, how is BALL written in the same code? (a) CBMM (b) XYNN (c) ZAPP (d) YZOO
- 12.If SUN is written as RTM, how is FROG written in the same code? (a) FROG (b) GSPH (c) EQNF (d) DPME
- 13.If SHIP is written as HSRK, how is GOLD written in the same code? (a) SKNV (b) UMPX (c) TLOW (d) HPME
- 14.If TREE is written as EERT, how is WIND written in the same code? (a) XJOE (b) CMHV (c) EOJX (d) DNIW
- 15.If FROG is written as UILT, how is MILK written in the same code? (a) NJML (b) OSPQ (c) MQNO (d) NROP
- 16.If CAKE is written as XZPV, how is COLD written in the same code? (a) YMPX (b) DPME (c) XLOW (d) WKNV
- 17.If PARK is written as MTCR, how is COLD written in the same code? (a) BJMA (b) DLOC (c) EQNF (d) FNQE
- 18.If BOOK is written as YLLP, how is GOLD written in the same code? (a) TLOW (b) SKNV (c) UMPX (d) HPME
- 19.If MILK is written as NROP, how is BOOK written in the same code? (a) XKKO (b) YLLP (c) ZMMQ (d) CPPL
- 20.If MOON is written as NLLM, how is CAT written in the same code? (a) YAH (b) XZG (c) WYF (d) DBU
- 21.If SUN is written as NUS, how is FISH written in the same code? (a) GRHE (b) GJTI (c) HSIF (d) ITJG
- 22.If SUN is written as TVO, how is TREE written in the same code? (a) VTGG (b) SQDD (c) USFF (d) FFSU
- 23.If DRUM is written as MURD, how is DESK written in the same code? (a) EFTL (b) JRDC (c) LTFE (d) KSED
- 24.If KITE is written as DSHJ, how is COLD written in the same code? (a) BNKC (b) EMPD (c) CKNB (d) DLOC
- 25.If LION is written as MJPO, how is HAND written in the same code? (a) EOBI (b) IBOE (c) GZMC (d) JCPF
- 26.If KITE is written as PRGV, how is COLD written in the same code? (a) YMPX (b) WKNV (c) DPME (d) XLOW
- 27.If STAR is written as RATS, how is MILK written in the same code? (a) LMJN (b) NJML (c) JKHL (d) KLIM
- 28.If DESK is written as WVHP, how is PARK written in the same code? (a) JYHO (b) QBSL (c) LAJQ (d) KZIP
- 29.If SHIP is written as UJKR, how is PARK written in the same code? (a) NYPI (b) SDUN (c) QBSL (d) RCTM
- 30.If BALL is written as CBMM, how is FISH written in the same code? (a) HKUJ (b) ITJG (c) GJTI (d) EHRG
- 31.If FISH is written as ILVK, how is BALL written in the same code? (a) YXII (b) FEPP (c) DCNN (d) EDOO
- 32.If CAT is written as TAC, how is FISH written in the same code? (a) ITJG (b) HSIF (c) GRHE (d) GJTI
- 33.If PEN is written as RGP, how is MILK written in the same code? (a) NJML (b) PLON (c) OKNM (d) KGJI
- 34.If TREE is written as WUHH, how is GOLD written in the same code? (a) DLIA (b) KSPH (c) JROG (d) IQNF
- 35.If KITE is written as ETIK, how is MILK written in the same code? (a) JKHL (b) KLIM (c) NJML (d) LMJN
- 36.If STAR is written as HGZI, how is PEN written in the same code? (a) JUL (b) QFO (c) LWN (d) KVM
- 37.If FROG is written as HPSG, how is SUN written in the same code? (a) TVO (b) OVT (c) MTR (d) NUS
- 38.If LAMP is written as NCOR, how is BELL written in the same code? (a) ZCJJ (b) CFMM (c) DGNN (d) EHOO
- 39.If TOYS is written as SYOT, how is LION written in the same code? (a) OPJM (b) MNHK (c) MJPO (d) NOIL
- 40.If CAT is written as TAC, how is WIND written in the same code? (a) XJOE (b) DNIW (c) CMHV (d) EOJX
Answer key
- GMCE
- FYLB
- HSKN
- ORLM
- NIAR
- NYPI
- EHRG
- UBD
- XZG
- XLOW
- YZOO
- EQNF
- TLOW
- DNIW
- NROP
- XLOW
- FNQE
- TLOW
- YLLP
- XZG
- HSIF
- USFF
- KSED
- CKNB
- IBOE
- XLOW
- KLIM
- KZIP
- RCTM
- GJTI
- EDOO
- HSIF
- OKNM
- JROG
- KLIM
- KVM
- OVT
- DGNN
- NOIL
- DNIW
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