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 WIND is written as DRMW, how is MOON written in the same code? (a) NLLM (b) NPPO (c) OMMN (d) MKKL
- 2.If HAND is written as KDQG, how is DRUM written in the same code? (a) FTWO (b) GUXP (c) AORJ (d) HVYQ
- 3.If PARK is written as NYPI, how is BOOK written in the same code? (a) ZMMI (b) YLLH (c) DQQM (d) ANNJ
- 4.If DOG is written as WLT, how is BOAT written in the same code? (a) YLZG (b) CPBU (c) ZMAH (d) XKYF
- 5.If PEN is written as KVM, how is BELL written in the same code? (a) ZWPP (b) YVOO (c) XUNN (d) CFMM
- 6.If MOON is written as NOOM, how is DESK written in the same code? (a) KSED (b) EFTL (c) JRDC (d) LTFE
- 7.If TOYS is written as WRBV, how is DRUM written in the same code? (a) GUXP (b) HVYQ (c) AORJ (d) FTWO
- 8.If NEST is written as TSEN, how is DOG written in the same code? (a) FNC (b) GOD (c) EPH (d) HPE
- 9.If JUMP is written as PMUJ, how is WIND written in the same code? (a) EOJX (b) XJOE (c) CMHV (d) DNIW
- 10.If LION is written as JGML, how is SHIP written in the same code? (a) UJKR (b) RGHO (c) PEFM (d) QFGN
- 11.If CAT is written as UBD, how is PARK written in the same code? (a) KRAP (b) JQZO (c) QBSL (d) LSBQ
- 12.If PEN is written as ODM, how is BOOK written in the same code? (a) ANNJ (b) BOOK (c) ZMMI (d) CPPL
- 13.If CAT is written as FDW, how is NEST written in the same code? (a) RIWX (b) PGUV (c) KBPQ (d) QHVW
- 14.If SUN is written as NUS, how is COLD written in the same code? (a) CKNB (b) DLOC (c) EMPD (d) DPME
- 15.If COLD is written as XLOW, how is CAT written in the same code? (a) YAH (b) WYF (c) XZG (d) DBU
- 16.If CAKE is written as BZJD, how is MILK written in the same code? (a) MILK (b) LHKJ (c) NJML (d) KGJI
- 17.If SUN is written as NUS, how is RAIN written in the same code? (a) SBJO (b) MHZQ (c) NIAR (d) OJBS
- 18.If LAMP is written as QNBM, how is DRUM written in the same code? (a) LTQC (b) MURD (c) ESVN (d) NVSE
- 19.If CAT is written as XZG, how is WIND written in the same code? (a) ESNX (b) CQLV (c) XJOE (d) DRMW
- 20.If DESK is written as WVHP, how is CAKE written in the same code? (a) WYOU (b) XZPV (c) DBLF (d) YAQW
- 21.If WIND is written as FPKY, how is DRUM written in the same code? (a) KSPB (b) OWTF (c) FTWO (d) MURD
- 22.If NEST is written as MVHG, how is STAR written in the same code? (a) IHAJ (b) HGZI (c) GFYH (d) TUBS
- 23.If SHIP is written as PIHS, how is FISH written in the same code? (a) ITJG (b) GJTI (c) GRHE (d) HSIF
- 24.If SUN is written as OVT, how is STAR written in the same code? (a) QZSR (b) RATS (c) TUBS (d) SBUT
- 25.If PARK is written as KZIP, how is BOAT written in the same code? (a) CPBU (b) XKYF (c) ZMAH (d) YLZG
- 26.If DOG is written as CNF, how is KITE written in the same code? (a) IGRC (b) LJUF (c) JHSD (d) KITE
- 27.If DRUM is written as MURD, how is FISH written in the same code? (a) GRHE (b) GJTI (c) ITJG (d) HSIF
- 28.If BOOK is written as YLLP, how is PEN written in the same code? (a) JUL (b) KVM (c) QFO (d) LWN
- 29.If SUN is written as HFM, how is BOOK written in the same code? (a) ZMMQ (b) YLLP (c) CPPL (d) XKKO
- 30.If SUN is written as OVT, how is CAKE written in the same code? (a) DBLF (b) EKAC (c) DJZB (d) FLBD
- 31.If MILK is written as KLIM, how is RAIN written in the same code? (a) OJBS (b) MHZQ (c) NIAR (d) SBJO
- 32.If FROG is written as GORF, how is PEN written in the same code? (a) OFQ (b) NEP (c) QFO (d) MDO
- 33.If BALL is written as DCNN, how is DRUM written in the same code? (a) GUXP (b) BPSK (c) ESVN (d) FTWO
- 34.If SHIP is written as UJKR, how is LAMP written in the same code? (a) MBNQ (b) NCOR (c) JYKN (d) ODPS
- 35.If RAIN is written as PKCT, how is DOG written in the same code? (a) GOD (b) IQF (c) FQI (d) EMB
- 36.If BELL is written as YVOO, how is NEST written in the same code? (a) NWIH (b) OFTU (c) LUGF (d) MVHG
- 37.If MILK is written as KLIM, how is CAKE written in the same code? (a) DBLF (b) EKAC (c) DJZB (d) FLBD
- 38.If MILK is written as MNKO, how is SUN written in the same code? (a) LSQ (b) PWU (c) UWP (d) NUS
- 39.If COLD is written as XLOW, how is PEN written in the same code? (a) QFO (b) LWN (c) KVM (d) JUL
- 40.If BALL is written as KKZA, how is NEST written in the same code? (a) TSEN (b) UTFO (c) MDRS (d) SRDM
Answer key
- NLLM
- GUXP
- ZMMI
- YLZG
- YVOO
- KSED
- GUXP
- GOD
- DNIW
- QFGN
- LSBQ
- ANNJ
- QHVW
- DLOC
- XZG
- LHKJ
- NIAR
- NVSE
- DRMW
- XZPV
- OWTF
- HGZI
- HSIF
- SBUT
- YLZG
- JHSD
- HSIF
- KVM
- YLLP
- FLBD
- NIAR
- NEP
- FTWO
- NCOR
- IQF
- MVHG
- EKAC
- PWU
- KVM
- SRDM
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