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 DOG is written as WLT, how is BELL written in the same code? (a) XUNN (b) ZWPP (c) CFMM (d) YVOO
- 2.If LAMP is written as PMAL, how is COLD written in the same code? (a) EMPD (b) DLOC (c) CKNB (d) DPME
- 3.If TREE is written as FFSU, how is DRUM written in the same code? (a) NVSE (b) MURD (c) LTQC (d) ESVN
- 4.If BELL is written as YVOO, how is COLD written in the same code? (a) YMPX (b) DPME (c) XLOW (d) WKNV
- 5.If MILK is written as MNKO, how is DESK written in the same code? (a) IQCB (b) KSED (c) MUGF (d) FGUM
- 6.If FROG is written as GORF, how is BELL written in the same code? (a) CFMM (b) KKDA (c) MMFC (d) LLEB
- 7.If BOOK is written as YLLP, how is NEST written in the same code? (a) OFTU (b) NWIH (c) MVHG (d) LUGF
- 8.If FISH is written as ILVK, how is GOLD written in the same code? (a) DLIA (b) IQNF (c) KSPH (d) JROG
- 9.If CAT is written as UBD, how is DRUM written in the same code? (a) ESVN (b) LTQC (c) MURD (d) NVSE
- 10.If GOLD is written as TLOW, how is HAND written in the same code? (a) RYLV (b) TANX (c) IBOE (d) SZMW
- 11.If SUN is written as VXQ, how is MOON written in the same code? (a) QSSR (b) PRRQ (c) JLLK (d) OQQP
- 12.If DESK is written as KSED, how is MILK written in the same code? (a) KLIM (b) JKHL (c) NJML (d) LMJN
- 13.If BELL is written as YVOO, how is WIND written in the same code? (a) DRMW (b) CQLV (c) ESNX (d) XJOE
- 14.If TOYS is written as VQAU, how is SUN written in the same code? (a) QSL (b) UWP (c) VXQ (d) TVO
- 15.If PARK is written as KZIP, how is LAMP written in the same code? (a) NYMJ (b) OZNK (c) MBNQ (d) PAOL
- 16.If WIND is written as CMHV, how is BELL written in the same code? (a) ADKK (b) MMFC (c) LLEB (d) KKDA
- 17.If RAIN is written as IZRM, how is SHIP written in the same code? (a) ITSL (b) GRQJ (c) TIJQ (d) HSRK
- 18.If BOOK is written as CPPL, how is MILK written in the same code? (a) OKNM (b) LMJN (c) NJML (d) LHKJ
- 19.If MOON is written as NOOM, how is PARK written in the same code? (a) QBSL (b) LSBQ (c) JQZO (d) KRAP
- 20.If DESK is written as EFTL, how is BALL written in the same code? (a) AZKK (b) DCNN (c) CBMM (d) MMBC
- 21.If FROG is written as GSPH, how is STAR written in the same code? (a) SBUT (b) UVCT (c) TUBS (d) RSZQ
- 22.If FROG is written as HPSG, how is BALL written in the same code? (a) CBMM (b) LLAB (c) KKZA (d) MMBC
- 23.If BOOK is written as YLLP, how is HAND written in the same code? (a) RYLV (b) IBOE (c) SZMW (d) TANX
- 24.If GOLD is written as CKNF, how is FISH written in the same code? (a) GRHE (b) HSIF (c) ITJG (d) EHRG
- 25.If CAT is written as TAC, how is MILK written in the same code? (a) JKHL (b) LMJN (c) NJML (d) KLIM
- 26.If LAMP is written as NCOR, how is TREE written in the same code? (a) VTGG (b) RPCC (c) USFF (d) WUHH
- 27.If JUMP is written as PMUJ, how is CAT written in the same code? (a) DBU (b) UBD (c) TAC (d) SZB
- 28.If SUN is written as RTM, how is CAKE written in the same code? (a) BZJD (b) AYIC (c) DBLF (d) CAKE
- 29.If FROG is written as DPME, how is PARK written in the same code? (a) MXOH (b) RCTM (c) NYPI (d) OZQJ
- 30.If BELL is written as LLEB, how is SHIP written in the same code? (a) PIHS (b) OHGR (c) QJIT (d) TIJQ
- 31.If RAIN is written as PYGL, how is SHIP written in the same code? (a) UJKR (b) PEFM (c) RGHO (d) QFGN
- 32.If DRUM is written as CQTL, how is PEN written in the same code? (a) NCL (b) PEN (c) ODM (d) QFO
- 33.If MOON is written as NOOM, how is RAIN written in the same code? (a) MHZQ (b) SBJO (c) NIAR (d) OJBS
- 34.If TOYS is written as SYOT, how is CAT written in the same code? (a) TAC (b) UBD (c) SZB (d) DBU
- 35.If DRUM is written as MURD, how is RAIN written in the same code? (a) SBJO (b) MHZQ (c) OJBS (d) NIAR
- 36.If DRUM is written as MURD, how is MOON written in the same code? (a) NOOM (b) NPPO (c) OPPN (d) MNNL
- 37.If TREE is written as VTGG, how is PARK written in the same code? (a) RCTM (b) QBSL (c) SDUN (d) NYPI
- 38.If GOLD is written as TLOW, how is MOON written in the same code? (a) MKKL (b) NLLM (c) OMMN (d) NPPO
- 39.If NEST is written as OFTU, how is LAMP written in the same code? (a) MBNQ (b) KZLO (c) NCOR (d) QNBM
- 40.If KITE is written as JHSD, how is PEN written in the same code? (a) NCL (b) PEN (c) QFO (d) ODM
Answer key
- YVOO
- DLOC
- NVSE
- XLOW
- MUGF
- LLEB
- MVHG
- JROG
- NVSE
- SZMW
- PRRQ
- KLIM
- DRMW
- UWP
- OZNK
- KKDA
- HSRK
- NJML
- KRAP
- CBMM
- TUBS
- MMBC
- SZMW
- GRHE
- KLIM
- VTGG
- TAC
- BZJD
- NYPI
- PIHS
- QFGN
- ODM
- NIAR
- TAC
- NIAR
- NOOM
- RCTM
- NLLM
- MBNQ
- ODM
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