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 MTCR, how is DOG written in the same code? (a) FQI (b) IQF (c) GOD (d) EMB
- 2.If FISH is written as URHS, how is KITE written in the same code? (a) LJUF (b) PRGV (c) QSHW (d) OQFU
- 3.If BALL is written as MMBC, how is KITE written in the same code? (a) ETIK (b) FUJL (c) LJUF (d) DSHJ
- 4.If DOG is written as WLT, how is WIND written in the same code? (a) XJOE (b) DRMW (c) CQLV (d) ESNX
- 5.If WIND is written as DRMW, how is FISH written in the same code? (a) VSIT (b) URHS (c) TQGR (d) GJTI
- 6.If TREE is written as EERT, how is CAKE written in the same code? (a) DBLF (b) EKAC (c) FLBD (d) DJZB
- 7.If COLD is written as EMPD, how is SUN written in the same code? (a) TVO (b) OVT (c) MTR (d) NUS
- 8.If PEN is written as OFQ, how is DOG written in the same code? (a) FNC (b) EPH (c) HPE (d) GOD
- 9.If MOON is written as NPPO, how is BOOK written in the same code? (a) DQQM (b) LPPC (c) CPPL (d) ANNJ
- 10.If TREE is written as USFF, how is BOAT written in the same code? (a) UBPC (b) CPBU (c) ANZS (d) DQCV
- 11.If DOG is written as GOD, how is RAIN written in the same code? (a) OJBS (b) NIAR (c) MHZQ (d) SBJO
- 12.If STAR is written as RATS, how is BOOK written in the same code? (a) CPPL (b) JNNA (c) KOOB (d) LPPC
- 13.If JUMP is written as OLTI, how is DRUM written in the same code? (a) NVSE (b) MURD (c) CQTL (d) LTQC
- 14.If BELL is written as YVOO, how is PEN written in the same code? (a) QFO (b) KVM (c) LWN (d) JUL
- 15.If STAR is written as HGZI, how is TREE written in the same code? (a) HJWW (b) GIVV (c) FHUU (d) USFF
- 16.If CAKE is written as XZPV, how is JUMP written in the same code? (a) RGOL (b) PEMJ (c) KVNQ (d) QFNK
- 17.If TOYS is written as SYOT, how is BOOK written in the same code? (a) KOOB (b) CPPL (c) JNNA (d) LPPC
- 18.If TOYS is written as GLBH, how is CAT written in the same code? (a) YAH (b) WYF (c) DBU (d) XZG
- 19.If KITE is written as JHSD, how is GOLD written in the same code? (a) FNKC (b) EMJB (c) GOLD (d) HPME
- 20.If LION is written as NKQP, how is TOYS written in the same code? (a) RMWQ (b) UPZT (c) VQAU (d) WRBV
- 21.If JUMP is written as PMUJ, how is BELL written in the same code? (a) LLEB (b) CFMM (c) KKDA (d) MMFC
- 22.If DESK is written as WVHP, how is BOOK written in the same code? (a) XKKO (b) CPPL (c) ZMMQ (d) YLLP
- 23.If TREE is written as USFF, how is BALL written in the same code? (a) AZKK (b) DCNN (c) CBMM (d) MMBC
- 24.If DOG is written as IQF, how is LAMP written in the same code? (a) NKYJ (b) NCOR (c) ROCN (d) PMAL
- 25.If CAT is written as XZG, how is FROG written in the same code? (a) UILT (b) GSPH (c) VJMU (d) THKS
- 26.If GOLD is written as DLOG, how is KITE written in the same code? (a) ETIK (b) LJUF (c) FUJL (d) DSHJ
- 27.If DRUM is written as FTWO, how is TREE written in the same code? (a) USFF (b) WUHH (c) RPCC (d) VTGG
- 28.If BOOK is written as CPPL, how is LION written in the same code? (a) OPJM (b) KHNM (c) MJPO (d) NKQP
- 29.If PARK is written as KRAP, how is BOAT written in the same code? (a) CPBU (b) TAOB (c) UBPC (d) SZNA
- 30.If PEN is written as KVM, how is NEST written in the same code? (a) OFTU (b) LUGF (c) MVHG (d) NWIH
- 31.If GOLD is written as DLOG, how is COLD written in the same code? (a) DLOC (b) DPME (c) EMPD (d) CKNB
- 32.If PARK is written as KZIP, how is LAMP written in the same code? (a) OZNK (b) MBNQ (c) PAOL (d) NYMJ
- 33.If TOYS is written as GLBH, how is DRUM written in the same code? (a) WIFN (b) XJGO (c) ESVN (d) VHEM
- 34.If PEN is written as KVM, how is CAT written in the same code? (a) WYF (b) XZG (c) DBU (d) YAH
- 35.If TREE is written as RPCC, how is MILK written in the same code? (a) OKNM (b) JFIH (c) LHKJ (d) KGJI
- 36.If STAR is written as TUBS, how is SUN written in the same code? (a) OVT (b) UWP (c) RTM (d) TVO
- 37.If TOYS is written as SYOT, how is MILK written in the same code? (a) LMJN (b) NJML (c) KLIM (d) JKHL
- 38.If DOG is written as HPE, how is GOLD written in the same code? (a) DLOG (b) EMPH (c) HPME (d) CKNF
- 39.If NEST is written as TSEN, how is JUMP written in the same code? (a) OLTI (b) PMUJ (c) KVNQ (d) QNVK
- 40.If LAMP is written as OLZK, how is PARK written in the same code? (a) KRAP (b) LSBQ (c) JQZO (d) OZQJ
Answer key
- IQF
- PRGV
- FUJL
- DRMW
- URHS
- EKAC
- OVT
- HPE
- CPPL
- CPBU
- NIAR
- KOOB
- LTQC
- KVM
- GIVV
- QFNK
- KOOB
- XZG
- FNKC
- VQAU
- LLEB
- YLLP
- CBMM
- ROCN
- UILT
- ETIK
- VTGG
- MJPO
- TAOB
- MVHG
- DLOC
- OZNK
- WIFN
- XZG
- KGJI
- TVO
- KLIM
- EMPH
- PMUJ
- JQZO
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