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 BOOK is written as YLLP, how is BALL written in the same code? (a) XYNN (b) ZAPP (c) YZOO (d) CBMM
- 2.If SHIP is written as RKJU, how is WIND written in the same code? (a) DNIW (b) FPKY (c) YKPF (d) BLGU
- 3.If NEST is written as UTFO, how is FISH written in the same code? (a) GRHE (b) ITJG (c) HSIF (d) GJTI
- 4.If CAKE is written as GMCE, how is SHIP written in the same code? (a) NGFQ (b) PIHS (c) RKJU (d) UJKR
- 5.If DOG is written as EPH, how is SHIP written in the same code? (a) RGHO (b) QJIT (c) TIJQ (d) UJKR
- 6.If SUN is written as NUS, how is STAR written in the same code? (a) QZSR (b) SBUT (c) TUBS (d) RATS
- 7.If GOLD is written as CKNF, how is WIND written in the same code? (a) CMHV (b) EOJX (c) DNIW (d) VHMC
- 8.If SHIP is written as PIHS, how is RAIN written in the same code? (a) NIAR (b) SBJO (c) OJBS (d) MHZQ
- 9.If TREE is written as FFSU, how is BELL written in the same code? (a) MMFC (b) CFMM (c) KKDA (d) LLEB
- 10.If LION is written as KHNM, how is SUN written in the same code? (a) QSL (b) SUN (c) RTM (d) TVO
- 11.If TREE is written as EERT, how is DRUM written in the same code? (a) MURD (b) NVSE (c) LTQC (d) ESVN
- 12.If LAMP is written as MBNQ, how is BOOK written in the same code? (a) LPPC (b) ANNJ (c) CPPL (d) DQQM
- 13.If DOG is written as FNC, how is TREE written in the same code? (a) SQDD (b) FFSU (c) DDQS (d) EERT
- 14.If FISH is written as URHS, how is WIND written in the same code? (a) XJOE (b) DRMW (c) ESNX (d) CQLV
- 15.If MILK is written as LHKJ, how is NEST written in the same code? (a) LCQR (b) OFTU (c) MDRS (d) NEST
- 16.If DRUM is written as LTQC, how is MILK written in the same code? (a) LHKJ (b) KLIM (c) JKHL (d) LMJN
- 17.If TOYS is written as SYOT, how is LAMP written in the same code? (a) MBNQ (b) OLZK (c) PMAL (d) QNBM
- 18.If GOLD is written as TLOW, how is STAR written in the same code? (a) GFYH (b) HGZI (c) TUBS (d) IHAJ
- 19.If NEST is written as VUGP, how is DOG written in the same code? (a) FQI (b) GOD (c) EMB (d) IQF
- 20.If GOLD is written as IQNF, how is WIND written in the same code? (a) YKPF (b) XJOE (c) UGLB (d) ZLQG
- 21.If JUMP is written as PMUJ, how is PARK written in the same code? (a) JQZO (b) QBSL (c) LSBQ (d) KRAP
- 22.If WIND is written as DNIW, how is JUMP written in the same code? (a) KVNQ (b) PMUJ (c) QNVK (d) OLTI
- 23.If WIND is written as VHMC, how is COLD written in the same code? (a) DPME (b) COLD (c) BNKC (d) AMJB
- 24.If TREE is written as FFSU, how is SUN written in the same code? (a) TVO (b) MTR (c) NUS (d) OVT
- 25.If KITE is written as DSHJ, how is BOOK written in the same code? (a) KOOB (b) ANNJ (c) JNNA (d) LPPC
- 26.If BALL is written as LLAB, how is TOYS written in the same code? (a) TZPU (b) RXNS (c) UPZT (d) SYOT
- 27.If STAR is written as HGZI, how is SHIP written in the same code? (a) HSRK (b) TIJQ (c) ITSL (d) GRQJ
- 28.If BOOK is written as KOOB, how is NEST written in the same code? (a) SRDM (b) OFTU (c) UTFO (d) TSEN
- 29.If FROG is written as UILT, how is TOYS written in the same code? (a) FKAG (b) GLBH (c) HMCI (d) UPZT
- 30.If SUN is written as NUS, how is FROG written in the same code? (a) GSPH (b) GORF (c) FNQE (d) HPSG
- 31.If SHIP is written as HSRK, how is RAIN written in the same code? (a) JASN (b) IZRM (c) HYQL (d) SBJO
- 32.If NEST is written as PGUV, how is MOON written in the same code? (a) PRRQ (b) OQQP (c) NPPO (d) KMML
- 33.If PEN is written as OFQ, how is NEST written in the same code? (a) OFTU (b) TSEN (c) SRDM (d) UTFO
- 34.If TREE is written as FFSU, how is FISH written in the same code? (a) GJTI (b) HSIF (c) ITJG (d) GRHE
- 35.If DRUM is written as GUXP, how is KITE written in the same code? (a) OMXI (b) NLWH (c) MKVG (d) HFQB
- 36.If COLD is written as DPME, how is BOAT written in the same code? (a) ANZS (b) DQCV (c) UBPC (d) CPBU
- 37.If WIND is written as DRMW, how is DOG written in the same code? (a) EPH (b) WLT (c) VKS (d) XMU
- 38.If BELL is written as LLEB, how is JUMP written in the same code? (a) QNVK (b) OLTI (c) KVNQ (d) PMUJ
- 39.If SHIP is written as TIJQ, how is KITE written in the same code? (a) JHSD (b) LJUF (c) FUJL (d) MKVG
- 40.If PEN is written as NCL, how is BOOK written in the same code? (a) DQQM (b) ANNJ (c) YLLH (d) ZMMI
Answer key
- YZOO
- FPKY
- ITJG
- RKJU
- TIJQ
- RATS
- CMHV
- NIAR
- MMFC
- RTM
- MURD
- CPPL
- DDQS
- DRMW
- MDRS
- JKHL
- PMAL
- HGZI
- IQF
- YKPF
- KRAP
- PMUJ
- BNKC
- OVT
- JNNA
- SYOT
- HSRK
- TSEN
- GLBH
- GORF
- IZRM
- OQQP
- UTFO
- ITJG
- NLWH
- CPBU
- WLT
- PMUJ
- LJUF
- ZMMI
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