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 PARK is written as JQZO, how is MOON written in the same code? (a) LNNM (b) MNNL (c) OPPN (d) NOOM
- 2.If BELL is written as LLEB, how is WIND written in the same code? (a) XJOE (b) DNIW (c) EOJX (d) CMHV
- 3.If RAIN is written as NIAR, how is MOON written in the same code? (a) OPPN (b) NPPO (c) NOOM (d) MNNL
- 4.If BOOK is written as JNNA, how is NEST written in the same code? (a) SRDM (b) UTFO (c) TSEN (d) MDRS
- 5.If DOG is written as GOD, how is CAT written in the same code? (a) TAC (b) DBU (c) SZB (d) UBD
- 6.If PEN is written as NEP, how is BALL written in the same code? (a) CBMM (b) LLAB (c) MMBC (d) KKZA
- 7.If MOON is written as NOOM, how is BOAT written in the same code? (a) SZNA (b) CPBU (c) UBPC (d) TAOB
- 8.If LAMP is written as QNBM, how is PARK written in the same code? (a) JQZO (b) LSBQ (c) KRAP (d) QBSL
- 9.If STAR is written as HGZI, how is SUN written in the same code? (a) TVO (b) IGN (c) HFM (d) GEL
- 10.If COLD is written as AMJB, how is MILK written in the same code? (a) JFIH (b) KGJI (c) OKNM (d) LHKJ
- 11.If DESK is written as WVHP, how is BELL written in the same code? (a) YVOO (b) CFMM (c) XUNN (d) ZWPP
- 12.If BOOK is written as KOOB, how is MILK written in the same code? (a) LMJN (b) KLIM (c) NJML (d) JKHL
- 13.If COLD is written as DLOC, how is BOOK written in the same code? (a) JNNA (b) CPPL (c) LPPC (d) KOOB
- 14.If SUN is written as QSL, how is WIND written in the same code? (a) VHMC (b) YKPF (c) TFKA (d) UGLB
- 15.If KITE is written as ETIK, how is DESK written in the same code? (a) EFTL (b) KSED (c) JRDC (d) LTFE
- 16.If STAR is written as UVCT, how is PEN written in the same code? (a) NCL (b) SHQ (c) QFO (d) RGP
- 17.If TOYS is written as UPZT, how is FISH written in the same code? (a) ITJG (b) HKUJ (c) EHRG (d) GJTI
- 18.If MOON is written as MNNL, how is TREE written in the same code? (a) FFSU (b) SQDD (c) EERT (d) DDQS
- 19.If BELL is written as ADKK, how is TREE written in the same code? (a) TREE (b) USFF (c) RPCC (d) SQDD
- 20.If BOAT is written as YLZG, how is TOYS written in the same code? (a) HMCI (b) UPZT (c) GLBH (d) FKAG
- 21.If PEN is written as QFO, how is SUN written in the same code? (a) RTM (b) TVO (c) UWP (d) OVT
- 22.If RAIN is written as OJBS, how is PARK written in the same code? (a) LSBQ (b) KRAP (c) JQZO (d) QBSL
- 23.If GOLD is written as JROG, how is TOYS written in the same code? (a) QLVP (b) VQAU (c) XSCW (d) WRBV
- 24.If GOLD is written as DLOG, how is TREE written in the same code? (a) USFF (b) EERT (c) FFSU (d) DDQS
- 25.If COLD is written as XLOW, how is PEN written in the same code? (a) LWN (b) KVM (c) JUL (d) QFO
- 26.If PEN is written as ODM, how is MILK written in the same code? (a) KGJI (b) NJML (c) MILK (d) LHKJ
- 27.If CAT is written as TAC, how is KITE written in the same code? (a) ETIK (b) FUJL (c) LJUF (d) DSHJ
- 28.If JUMP is written as QFNK, how is BALL written in the same code? (a) YZOO (b) ZAPP (c) CBMM (d) XYNN
- 29.If HAND is written as DNAH, how is FISH written in the same code? (a) GJTI (b) ITJG (c) HSIF (d) GRHE
- 30.If PARK is written as JQZO, how is FISH written in the same code? (a) ITJG (b) HSIF (c) GRHE (d) EHRG
- 31.If MOON is written as NLLM, how is GOLD written in the same code? (a) HPME (b) SKNV (c) TLOW (d) UMPX
- 32.If JUMP is written as HSKN, how is KITE written in the same code? (a) IGRC (b) HFQB (c) MKVG (d) JHSD
- 33.If COLD is written as XLOW, how is BALL written in the same code? (a) ZAPP (b) CBMM (c) XYNN (d) YZOO
- 34.If DRUM is written as WIFN, how is NEST written in the same code? (a) MVHG (b) NWIH (c) LUGF (d) OFTU
- 35.If HAND is written as GZMC, how is BALL written in the same code? (a) AZKK (b) BALL (c) ZYJJ (d) CBMM
- 36.If WIND is written as CMHV, how is PEN written in the same code? (a) MDO (b) OFQ (c) NEP (d) ODM
- 37.If NEST is written as SRDM, how is CAT written in the same code? (a) UBD (b) BZS (c) TAC (d) SZB
- 38.If LION is written as OPJM, how is CAKE written in the same code? (a) DBLF (b) DJZB (c) EKAC (d) FLBD
- 39.If FISH is written as URHS, how is TREE written in the same code? (a) USFF (b) FHUU (c) HJWW (d) GIVV
- 40.If STAR is written as UVCT, how is GOLD written in the same code? (a) JROG (b) IQNF (c) HPME (d) EMJB
Answer key
- MNNL
- DNIW
- NOOM
- SRDM
- TAC
- LLAB
- TAOB
- LSBQ
- HFM
- KGJI
- YVOO
- KLIM
- KOOB
- UGLB
- KSED
- RGP
- GJTI
- DDQS
- SQDD
- GLBH
- TVO
- LSBQ
- WRBV
- EERT
- KVM
- LHKJ
- ETIK
- YZOO
- HSIF
- GRHE
- TLOW
- IGRC
- YZOO
- MVHG
- AZKK
- MDO
- SZB
- FLBD
- GIVV
- IQNF
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