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 MTR, how is LAMP written in the same code? (a) PMAL (b) OLZK (c) KZLO (d) QNBM
- 2.If FROG is written as UILT, how is GOLD written in the same code? (a) UMPX (b) HPME (c) SKNV (d) TLOW
- 3.If DESK is written as EFTL, how is PEN written in the same code? (a) RGP (b) QFO (c) ODM (d) OFQ
- 4.If CAKE is written as XZPV, how is TREE written in the same code? (a) HJWW (b) GIVV (c) USFF (d) FHUU
- 5.If MILK is written as KLIM, how is MOON written in the same code? (a) NPPO (b) OPPN (c) NOOM (d) MNNL
- 6.If BALL is written as KKZA, how is MOON written in the same code? (a) NOOM (b) LNNM (c) OPPN (d) MNNL
- 7.If PARK is written as KRAP, how is TREE written in the same code? (a) FFSU (b) USFF (c) DDQS (d) EERT
- 8.If SUN is written as NUS, how is LAMP written in the same code? (a) MBNQ (b) OLZK (c) PMAL (d) QNBM
- 9.If CAKE is written as FDNH, how is CAT written in the same code? (a) FDW (b) GEX (c) ZXQ (d) ECV
- 10.If BELL is written as LLEB, how is MOON written in the same code? (a) NOOM (b) OPPN (c) MNNL (d) NPPO
- 11.If DRUM is written as WIFN, how is DESK written in the same code? (a) WVHP (b) VUGO (c) EFTL (d) XWIQ
- 12.If JUMP is written as ITLO, how is HAND written in the same code? (a) FYLB (b) GZMC (c) IBOE (d) HAND
- 13.If SHIP is written as PIHS, how is KITE written in the same code? (a) DSHJ (b) ETIK (c) FUJL (d) LJUF
- 14.If CAKE is written as FDNH, how is DRUM written in the same code? (a) AORJ (b) GUXP (c) FTWO (d) HVYQ
- 15.If GOLD is written as EMPH, how is BOAT written in the same code? (a) UBPC (b) CPBU (c) TAOB (d) SZNA
- 16.If DRUM is written as OWTF, how is TOYS written in the same code? (a) VQAU (b) UAQV (c) SYOT (d) QWMR
- 17.If GOLD is written as CKNF, how is BOOK written in the same code? (a) KOOB (b) JNNA (c) LPPC (d) ANNJ
- 18.If MILK is written as KLIM, how is FISH written in the same code? (a) GRHE (b) GJTI (c) ITJG (d) HSIF
- 19.If CAKE is written as XZPV, how is WIND written in the same code? (a) ESNX (b) DRMW (c) CQLV (d) XJOE
- 20.If CAT is written as TAC, how is HAND written in the same code? (a) DNAH (b) IBOE (c) CMZG (d) EOBI
- 21.If CAT is written as DBU, how is DESK written in the same code? (a) FGUM (b) EFTL (c) CDRJ (d) LTFE
- 22.If FISH is written as HKUJ, how is CAKE written in the same code? (a) FDNH (b) ECMG (c) DBLF (d) AYIC
- 23.If SUN is written as TVO, how is SHIP written in the same code? (a) RGHO (b) TIJQ (c) UJKR (d) QJIT
- 24.If SHIP is written as PIHS, how is PARK written in the same code? (a) LSBQ (b) KRAP (c) QBSL (d) JQZO
- 25.If PARK is written as KZIP, how is HAND written in the same code? (a) RYLV (b) IBOE (c) TANX (d) SZMW
- 26.If DOG is written as FQI, how is TREE written in the same code? (a) VTGG (b) WUHH (c) RPCC (d) USFF
- 27.If TREE is written as RPCC, how is TOYS written in the same code? (a) QLVP (b) RMWQ (c) VQAU (d) SNXR
- 28.If NEST is written as TSEN, how is DESK written in the same code? (a) LTFE (b) KSED (c) JRDC (d) EFTL
- 29.If PEN is written as KVM, how is GOLD written in the same code? (a) SKNV (b) UMPX (c) TLOW (d) HPME
- 30.If RAIN is written as UDLQ, how is TREE written in the same code? (a) VTGG (b) XVII (c) QOBB (d) WUHH
- 31.If FROG is written as GORF, how is TREE written in the same code? (a) EERT (b) DDQS (c) USFF (d) FFSU
- 32.If SUN is written as UWP, how is CAT written in the same code? (a) AYR (b) FDW (c) ECV (d) DBU
- 33.If CAKE is written as XZPV, how is CAT written in the same code? (a) YAH (b) DBU (c) XZG (d) WYF
- 34.If JUMP is written as QFNK, how is BOOK written in the same code? (a) ZMMQ (b) XKKO (c) YLLP (d) CPPL
- 35.If CAKE is written as EKAC, how is DESK written in the same code? (a) EFTL (b) LTFE (c) KSED (d) JRDC
- 36.If MILK is written as NJML, how is CAT written in the same code? (a) DBU (b) BZS (c) UBD (d) ECV
- 37.If FISH is written as GRHE, how is RAIN written in the same code? (a) MHZQ (b) NIAR (c) QZHM (d) OJBS
- 38.If PEN is written as QFO, how is LAMP written in the same code? (a) MBNQ (b) QNBM (c) KZLO (d) NCOR
- 39.If BELL is written as YVOO, how is WIND written in the same code? (a) CQLV (b) ESNX (c) XJOE (d) DRMW
- 40.If LAMP is written as JYKN, how is GOLD written in the same code? (a) DLIA (b) IQNF (c) FNKC (d) EMJB
Answer key
- OLZK
- TLOW
- QFO
- GIVV
- NOOM
- MNNL
- EERT
- PMAL
- FDW
- NOOM
- WVHP
- GZMC
- ETIK
- GUXP
- UBPC
- UAQV
- JNNA
- HSIF
- DRMW
- DNAH
- EFTL
- ECMG
- TIJQ
- KRAP
- SZMW
- VTGG
- RMWQ
- KSED
- TLOW
- WUHH
- EERT
- ECV
- XZG
- YLLP
- KSED
- DBU
- MHZQ
- MBNQ
- DRMW
- EMJB
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