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 BELL is written as LLEB, how is FROG written in the same code? (a) GORF (b) FNQE (c) HPSG (d) GSPH
- 2.If BALL is written as YZOO, how is CAKE written in the same code? (a) YAQW (b) DBLF (c) XZPV (d) WYOU
- 3.If COLD is written as XLOW, how is LAMP written in the same code? (a) PAOL (b) NYMJ (c) MBNQ (d) OZNK
- 4.If JUMP is written as HSKN, how is MOON written in the same code? (a) JLLK (b) OQQP (c) LNNM (d) KMML
- 5.If MILK is written as NROP, how is RAIN written in the same code? (a) HYQL (b) JASN (c) IZRM (d) SBJO
- 6.If FISH is written as URHS, how is LION written in the same code? (a) MJPO (b) NQKL (c) ORLM (d) PSMN
- 7.If KITE is written as PRGV, how is BALL written in the same code? (a) YZOO (b) XYNN (c) CBMM (d) ZAPP
- 8.If PARK is written as KRAP, how is BOAT written in the same code? (a) UBPC (b) CPBU (c) TAOB (d) SZNA
- 9.If LION is written as NOIL, how is HAND written in the same code? (a) EOBI (b) IBOE (c) DNAH (d) CMZG
- 10.If PARK is written as JQZO, how is FROG written in the same code? (a) EQNF (b) HPSG (c) FNQE (d) GORF
- 11.If NEST is written as VUGP, how is BOOK written in the same code? (a) DQQM (b) KOOB (c) MQQD (d) IMMZ
- 12.If CAKE is written as DBLF, how is BOOK written in the same code? (a) DQQM (b) LPPC (c) ANNJ (d) CPPL
- 13.If MILK is written as PLON, how is COLD written in the same code? (a) FROG (b) EQNF (c) GSPH (d) ZLIA
- 14.If MILK is written as JKHL, how is LION written in the same code? (a) OPJM (b) NOIL (c) KHNM (d) MNHK
- 15.If STAR is written as HGZI, how is CAKE written in the same code? (a) WYOU (b) XZPV (c) YAQW (d) DBLF
- 16.If COLD is written as XLOW, how is CAKE written in the same code? (a) YAQW (b) WYOU (c) XZPV (d) DBLF
- 17.If JUMP is written as PMUJ, how is DOG written in the same code? (a) FNC (b) EPH (c) GOD (d) HPE
- 18.If DOG is written as FNC, how is TOYS written in the same code? (a) RXNS (b) SNXR (c) TZPU (d) SYOT
- 19.If PARK is written as KZIP, how is MILK written in the same code? (a) MQNO (b) NROP (c) OSPQ (d) NJML
- 20.If SUN is written as RTM, how is DESK written in the same code? (a) EFTL (b) DESK (c) BCQI (d) CDRJ
- 21.If LAMP is written as ODPS, how is CAKE written in the same code? (a) FDNH (b) GEOI (c) ECMG (d) ZXHB
- 22.If BOAT is written as YLZG, how is TREE written in the same code? (a) USFF (b) FHUU (c) GIVV (d) HJWW
- 23.If DOG is written as WLT, how is KITE written in the same code? (a) PRGV (b) OQFU (c) LJUF (d) QSHW
- 24.If KITE is written as FUJL, how is CAT written in the same code? (a) DBU (b) SZB (c) TAC (d) UBD
- 25.If KITE is written as LJUF, how is FISH written in the same code? (a) ITJG (b) GJTI (c) EHRG (d) HKUJ
- 26.If CAT is written as XZG, how is DOG written in the same code? (a) WLT (b) EPH (c) XMU (d) VKS
- 27.If BALL is written as KKZA, how is HAND written in the same code? (a) GZMC (b) EOBI (c) CMZG (d) DNAH
- 28.If TOYS is written as VQAU, how is SUN written in the same code? (a) VXQ (b) QSL (c) TVO (d) UWP
- 29.If LAMP is written as PMAL, how is LION written in the same code? (a) OPJM (b) NOIL (c) MNHK (d) MJPO
- 30.If LAMP is written as JYKN, how is COLD written in the same code? (a) EQNF (b) ZLIA (c) AMJB (d) BNKC
- 31.If TREE is written as RPCC, how is MILK written in the same code? (a) KGJI (b) LHKJ (c) JFIH (d) OKNM
- 32.If BALL is written as DCNN, how is CAT written in the same code? (a) AYR (b) ECV (c) DBU (d) FDW
- 33.If BOOK is written as ZMMI, how is PEN written in the same code? (a) RGP (b) NCL (c) ODM (d) MBK
- 34.If PEN is written as KVM, how is FROG written in the same code? (a) THKS (b) VJMU (c) UILT (d) GSPH
- 35.If MILK is written as NROP, how is KITE written in the same code? (a) LJUF (b) PRGV (c) OQFU (d) QSHW
- 36.If DOG is written as BME, how is MOON written in the same code? (a) LNNM (b) OQQP (c) KMML (d) JLLK
- 37.If HAND is written as JCPF, how is KITE written in the same code? (a) NLWH (b) IGRC (c) MKVG (d) LJUF
- 38.If MILK is written as NJML, how is LION written in the same code? (a) MJPO (b) NKQP (c) OPJM (d) KHNM
- 39.If STAR is written as QRYP, how is FROG written in the same code? (a) COLD (b) DPME (c) EQNF (d) HTQI
- 40.If PARK is written as SDUN, how is LAMP written in the same code? (a) IXJM (b) PEQT (c) NCOR (d) ODPS
Answer key
- GORF
- XZPV
- OZNK
- KMML
- IZRM
- ORLM
- YZOO
- TAOB
- DNAH
- FNQE
- MQQD
- CPPL
- FROG
- MNHK
- XZPV
- XZPV
- GOD
- RXNS
- NROP
- CDRJ
- FDNH
- GIVV
- PRGV
- UBD
- GJTI
- WLT
- CMZG
- UWP
- NOIL
- AMJB
- KGJI
- ECV
- NCL
- UILT
- PRGV
- KMML
- MKVG
- MJPO
- DPME
- ODPS
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