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 KZIP, how is DOG written in the same code? (a) XMU (b) VKS (c) EPH (d) WLT
- 2.If MILK is written as MNKO, how is SUN written in the same code? (a) UWP (b) LSQ (c) NUS (d) PWU
- 3.If LAMP is written as NCOR, how is MILK written in the same code? (a) KGJI (b) PLON (c) NJML (d) OKNM
- 4.If SUN is written as QSL, how is PEN written in the same code? (a) RGP (b) NCL (c) MBK (d) ODM
- 5.If FISH is written as URHS, how is FROG written in the same code? (a) VJMU (b) UILT (c) GSPH (d) THKS
- 6.If DOG is written as WLT, how is BOAT written in the same code? (a) CPBU (b) ZMAH (c) XKYF (d) YLZG
- 7.If RAIN is written as NIAR, how is MILK written in the same code? (a) LMJN (b) NJML (c) JKHL (d) KLIM
- 8.If PEN is written as KVM, how is BOAT written in the same code? (a) ZMAH (b) YLZG (c) CPBU (d) XKYF
- 9.If BOAT is written as TAOB, how is PARK written in the same code? (a) KRAP (b) LSBQ (c) JQZO (d) QBSL
- 10.If MILK is written as JKHL, how is TREE written in the same code? (a) FFSU (b) DDQS (c) SQDD (d) EERT
- 11.If NEST is written as MDRS, how is JUMP written in the same code? (a) KVNQ (b) HSKN (c) JUMP (d) ITLO
- 12.If HAND is written as SZMW, how is MILK written in the same code? (a) NJML (b) OSPQ (c) MQNO (d) NROP
- 13.If BOOK is written as MQQD, how is LAMP written in the same code? (a) NKYJ (b) ROCN (c) NCOR (d) PMAL
- 14.If TREE is written as USFF, how is FISH written in the same code? (a) EHRG (b) HKUJ (c) ITJG (d) GJTI
- 15.If COLD is written as DLOC, how is MILK written in the same code? (a) NJML (b) LMJN (c) JKHL (d) KLIM
- 16.If GOLD is written as IQNF, how is SHIP written in the same code? (a) TIJQ (b) QFGN (c) VKLS (d) UJKR
- 17.If MILK is written as NROP, how is PEN written in the same code? (a) JUL (b) LWN (c) KVM (d) QFO
- 18.If BALL is written as CBMM, how is LAMP written in the same code? (a) KZLO (b) MBNQ (c) NCOR (d) QNBM
- 19.If SUN is written as HFM, how is RAIN written in the same code? (a) IZRM (b) SBJO (c) JASN (d) HYQL
- 20.If LION is written as ORLM, how is BELL written in the same code? (a) CFMM (b) YVOO (c) XUNN (d) ZWPP
- 21.If TOYS is written as TZPU, how is SHIP written in the same code? (a) PIHS (b) OHGR (c) QJIT (d) TIJQ
- 22.If BALL is written as DCNN, how is MILK written in the same code? (a) OKNM (b) NJML (c) KGJI (d) PLON
- 23.If SUN is written as HFM, how is DRUM written in the same code? (a) ESVN (b) VHEM (c) WIFN (d) XJGO
- 24.If LION is written as JGML, how is SUN written in the same code? (a) QSL (b) UWP (c) RTM (d) PRK
- 25.If BOOK is written as ERRN, how is MOON written in the same code? (a) JLLK (b) QSSR (c) OQQP (d) PRRQ
- 26.If CAT is written as TAC, how is SUN written in the same code? (a) TVO (b) OVT (c) NUS (d) MTR
- 27.If TOYS is written as UAQV, how is BOAT written in the same code? (a) TAOB (b) DQCV (c) VCQD (d) RYMZ
- 28.If HAND is written as FPCJ, how is STAR written in the same code? (a) TCVU (b) RATS (c) UVCT (d) PYRQ
- 29.If LION is written as MNHK, how is WIND written in the same code? (a) EOJX (b) DNIW (c) VHMC (d) CMHV
- 30.If LION is written as ORLM, how is CAKE written in the same code? (a) DBLF (b) YAQW (c) WYOU (d) XZPV
- 31.If MOON is written as OPPN, how is STAR written in the same code? (a) RATS (b) TUBS (c) QZSR (d) SBUT
- 32.If FISH is written as JUKH, how is CAT written in the same code? (a) ECV (b) TAC (c) RYA (d) VCE
- 33.If TOYS is written as SYOT, how is CAT written in the same code? (a) SZB (b) UBD (c) DBU (d) TAC
- 34.If WIND is written as VHMC, how is MOON written in the same code? (a) NPPO (b) MOON (c) KMML (d) LNNM
- 35.If WIND is written as DNIW, how is HAND written in the same code? (a) EOBI (b) IBOE (c) CMZG (d) DNAH
- 36.If BOOK is written as LPPC, how is BALL written in the same code? (a) CBMM (b) KKZA (c) LLAB (d) MMBC
- 37.If COLD is written as XLOW, how is TOYS written in the same code? (a) UPZT (b) HMCI (c) GLBH (d) FKAG
- 38.If BOAT is written as YLZG, how is STAR written in the same code? (a) TUBS (b) GFYH (c) IHAJ (d) HGZI
- 39.If DRUM is written as CQTL, how is STAR written in the same code? (a) QRYP (b) TUBS (c) STAR (d) RSZQ
- 40.If DESK is written as WVHP, how is SUN written in the same code? (a) GEL (b) IGN (c) TVO (d) HFM
Answer key
- WLT
- PWU
- OKNM
- NCL
- UILT
- YLZG
- KLIM
- YLZG
- KRAP
- DDQS
- ITLO
- NROP
- ROCN
- GJTI
- KLIM
- UJKR
- KVM
- MBNQ
- IZRM
- YVOO
- QJIT
- OKNM
- WIFN
- QSL
- PRRQ
- NUS
- VCQD
- TCVU
- CMHV
- XZPV
- SBUT
- VCE
- TAC
- LNNM
- DNAH
- MMBC
- GLBH
- HGZI
- RSZQ
- HFM
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