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 MILK is written as NJML, how is BOOK written in the same code? (a) CPPL (b) LPPC (c) DQQM (d) ANNJ
- 2.If FISH is written as HSIF, how is HAND written in the same code? (a) CMZG (b) EOBI (c) DNAH (d) IBOE
- 3.If MILK is written as KLIM, how is BOOK written in the same code? (a) LPPC (b) JNNA (c) KOOB (d) CPPL
- 4.If FROG is written as FNQE, how is DRUM written in the same code? (a) MURD (b) CQTL (c) LTQC (d) NVSE
- 5.If TREE is written as RPCC, how is PEN written in the same code? (a) ODM (b) RGP (c) NCL (d) MBK
- 6.If PEN is written as PGR, how is LION written in the same code? (a) LMGJ (b) NKQP (c) PQKN (d) NOIL
- 7.If BALL is written as LLAB, how is FISH written in the same code? (a) ITJG (b) GJTI (c) HSIF (d) GRHE
- 8.If CAT is written as ECV, how is FROG written in the same code? (a) IURJ (b) DPME (c) HTQI (d) GSPH
- 9.If SUN is written as PWU, how is BOAT written in the same code? (a) VCQD (b) RYMZ (c) TAOB (d) DQCV
- 10.If RAIN is written as SBJO, how is PARK written in the same code? (a) RCTM (b) QBSL (c) LSBQ (d) OZQJ
- 11.If MILK is written as NROP, how is FISH written in the same code? (a) VSIT (b) URHS (c) TQGR (d) GJTI
- 12.If DOG is written as GOD, how is SUN written in the same code? (a) TVO (b) OVT (c) NUS (d) MTR
- 13.If GOLD is written as DLOG, how is MILK written in the same code? (a) KLIM (b) NJML (c) JKHL (d) LMJN
- 14.If CAT is written as XZG, how is FROG written in the same code? (a) THKS (b) GSPH (c) VJMU (d) UILT
- 15.If BOAT is written as TAOB, how is SHIP written in the same code? (a) OHGR (b) QJIT (c) PIHS (d) TIJQ
- 16.If BOAT is written as UBPC, how is PEN written in the same code? (a) OFQ (b) MDO (c) QFO (d) NEP
- 17.If PEN is written as SHQ, how is PARK written in the same code? (a) MXOH (b) SDUN (c) RCTM (d) TEVO
- 18.If PEN is written as PGR, how is FROG written in the same code? (a) GORF (b) EMPD (c) HTQI (d) IQTH
- 19.If HAND is written as DNAH, how is STAR written in the same code? (a) QZSR (b) TUBS (c) SBUT (d) RATS
- 20.If SHIP is written as QJIT, how is BALL written in the same code? (a) CBMM (b) KKZA (c) MMBC (d) LLAB
- 21.If DRUM is written as NVSE, how is TREE written in the same code? (a) USFF (b) FFSU (c) DDQS (d) EERT
- 22.If STAR is written as HGZI, how is COLD written in the same code? (a) YMPX (b) WKNV (c) DPME (d) XLOW
- 23.If FISH is written as HSIF, how is CAT written in the same code? (a) TAC (b) DBU (c) UBD (d) SZB
- 24.If RAIN is written as IZRM, how is STAR written in the same code? (a) GFYH (b) IHAJ (c) TUBS (d) HGZI
- 25.If STAR is written as RSZQ, how is TREE written in the same code? (a) RPCC (b) USFF (c) TREE (d) SQDD
- 26.If LAMP is written as OLZK, how is FISH written in the same code? (a) HSIF (b) EHRG (c) ITJG (d) GRHE
- 27.If SHIP is written as VKLS, how is BELL written in the same code? (a) YBII (b) FIPP (c) EHOO (d) DGNN
- 28.If MILK is written as NROP, how is MOON written in the same code? (a) MKKL (b) NLLM (c) NPPO (d) OMMN
- 29.If BALL is written as YZOO, how is RAIN written in the same code? (a) JASN (b) IZRM (c) HYQL (d) SBJO
- 30.If COLD is written as BNKC, how is LAMP written in the same code? (a) MBNQ (b) KZLO (c) JYKN (d) LAMP
- 31.If BELL is written as LLEB, how is WIND written in the same code? (a) EOJX (b) CMHV (c) XJOE (d) DNIW
- 32.If SHIP is written as PIHS, how is LAMP written in the same code? (a) OLZK (b) QNBM (c) MBNQ (d) PMAL
- 33.If PEN is written as PGR, how is BOOK written in the same code? (a) KOOB (b) IMMZ (c) MQQD (d) DQQM
- 34.If TOYS is written as RXNS, how is MILK written in the same code? (a) LMJN (b) LHKJ (c) JKHL (d) KLIM
- 35.If FISH is written as GRHE, how is SUN written in the same code? (a) OVT (b) NUS (c) RTM (d) MTR
- 36.If SUN is written as OVT, how is DOG written in the same code? (a) EPH (b) HPE (c) GOD (d) FNC
- 37.If FROG is written as UILT, how is MOON written in the same code? (a) MKKL (b) NPPO (c) OMMN (d) NLLM
- 38.If BOOK is written as YLLP, how is CAKE written in the same code? (a) YAQW (b) WYOU (c) XZPV (d) DBLF
- 39.If COLD is written as DPME, how is WIND written in the same code? (a) VHMC (b) YKPF (c) EOJX (d) XJOE
- 40.If FISH is written as HSIF, how is RAIN written in the same code? (a) MHZQ (b) SBJO (c) NIAR (d) OJBS
Answer key
- CPPL
- DNAH
- KOOB
- LTQC
- NCL
- PQKN
- HSIF
- HTQI
- VCQD
- QBSL
- URHS
- NUS
- KLIM
- UILT
- PIHS
- OFQ
- SDUN
- IQTH
- RATS
- MMBC
- FFSU
- XLOW
- TAC
- HGZI
- SQDD
- GRHE
- EHOO
- NLLM
- IZRM
- KZLO
- DNIW
- PMAL
- MQQD
- JKHL
- MTR
- HPE
- NLLM
- XZPV
- XJOE
- NIAR
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