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 PEN is written as QFO, how is BOAT written in the same code? (a) UBPC (b) ANZS (c) DQCV (d) CPBU
- 2.If SHIP is written as HSRK, how is KITE written in the same code? (a) OQFU (b) QSHW (c) LJUF (d) PRGV
- 3.If DOG is written as WLT, how is CAKE written in the same code? (a) XZPV (b) YAQW (c) DBLF (d) WYOU
- 4.If SUN is written as HFM, how is PEN written in the same code? (a) JUL (b) QFO (c) KVM (d) LWN
- 5.If TREE is written as GIVV, how is COLD written in the same code? (a) WKNV (b) DPME (c) XLOW (d) YMPX
- 6.If PEN is written as KVM, how is JUMP written in the same code? (a) RGOL (b) KVNQ (c) PEMJ (d) QFNK
- 7.If BALL is written as MMBC, how is SHIP written in the same code? (a) PIHS (b) TIJQ (c) QJIT (d) OHGR
- 8.If LION is written as MNHK, how is JUMP written in the same code? (a) OLTI (b) PMUJ (c) ITLO (d) QNVK
- 9.If WIND is written as VHMC, how is DOG written in the same code? (a) CNF (b) EPH (c) BME (d) DOG
- 10.If BOOK is written as YLLP, how is WIND written in the same code? (a) CQLV (b) DRMW (c) ESNX (d) XJOE
- 11.If CAKE is written as FDNH, how is SUN written in the same code? (a) PRK (b) UWP (c) VXQ (d) WYR
- 12.If CAT is written as VCE, how is SHIP written in the same code? (a) RKJU (b) NGFQ (c) UJKR (d) PIHS
- 13.If MOON is written as PRRQ, how is RAIN written in the same code? (a) OXFK (b) TCKP (c) VEMR (d) UDLQ
- 14.If MILK is written as LHKJ, how is PEN written in the same code? (a) ODM (b) PEN (c) QFO (d) NCL
- 15.If CAT is written as BZS, how is BOAT written in the same code? (a) BOAT (b) ANZS (c) ZMYR (d) CPBU
- 16.If LAMP is written as MBNQ, how is RAIN written in the same code? (a) TCKP (b) SBJO (c) OJBS (d) QZHM
- 17.If BOAT is written as TAOB, how is RAIN written in the same code? (a) NIAR (b) MHZQ (c) SBJO (d) OJBS
- 18.If FISH is written as HKUJ, how is SUN written in the same code? (a) VXQ (b) TVO (c) UWP (d) QSL
- 19.If CAKE is written as XZPV, how is LAMP written in the same code? (a) MBNQ (b) PAOL (c) OZNK (d) NYMJ
- 20.If BOOK is written as MQQD, how is MILK written in the same code? (a) KLIM (b) OKNM (c) MNKO (d) IJGK
- 21.If SUN is written as OVT, how is NEST written in the same code? (a) SRDM (b) OFTU (c) UTFO (d) TSEN
- 22.If TOYS is written as SYOT, how is LAMP written in the same code? (a) MBNQ (b) OLZK (c) QNBM (d) PMAL
- 23.If MOON is written as NOOM, how is PARK written in the same code? (a) LSBQ (b) QBSL (c) KRAP (d) JQZO
- 24.If DESK is written as JRDC, how is MILK written in the same code? (a) KLIM (b) LHKJ (c) LMJN (d) JKHL
- 25.If FISH is written as URHS, how is PARK written in the same code? (a) JYHO (b) LAJQ (c) KZIP (d) QBSL
- 26.If BALL is written as MMBC, how is NEST written in the same code? (a) TSEN (b) OFTU (c) UTFO (d) SRDM
- 27.If WIND is written as EOJX, how is BOAT written in the same code? (a) SZNA (b) CPBU (c) TAOB (d) UBPC
- 28.If HAND is written as EOBI, how is PEN written in the same code? (a) MDO (b) NEP (c) QFO (d) OFQ
- 29.If DOG is written as IQF, how is TREE written in the same code? (a) EERT (b) CCPR (c) VTGG (d) GGTV
- 30.If MILK is written as NROP, how is KITE written in the same code? (a) QSHW (b) PRGV (c) OQFU (d) LJUF
- 31.If HAND is written as IBOE, how is LION written in the same code? (a) NKQP (b) KHNM (c) OPJM (d) MJPO
- 32.If PARK is written as NYPI, how is WIND written in the same code? (a) UGLB (b) TFKA (c) YKPF (d) VHMC
- 33.If HAND is written as SZMW, how is KITE written in the same code? (a) QSHW (b) OQFU (c) LJUF (d) PRGV
- 34.If BELL is written as MMFC, how is FROG written in the same code? (a) GSPH (b) FNQE (c) HPSG (d) GORF
- 35.If PARK is written as NYPI, how is JUMP written in the same code? (a) ITLO (b) LWOR (c) GRJM (d) HSKN
- 36.If TOYS is written as SYOT, how is BELL written in the same code? (a) KKDA (b) CFMM (c) LLEB (d) MMFC
- 37.If TOYS is written as SYOT, how is DESK written in the same code? (a) KSED (b) LTFE (c) JRDC (d) EFTL
- 38.If STAR is written as HGZI, how is FISH written in the same code? (a) TQGR (b) URHS (c) VSIT (d) GJTI
- 39.If JUMP is written as QNVK, how is DESK written in the same code? (a) EFTL (b) JRDC (c) KSED (d) LTFE
- 40.If LAMP is written as NCOR, how is LION written in the same code? (a) NKQP (b) OLRQ (c) MJPO (d) JGML
Answer key
- CPBU
- PRGV
- XZPV
- KVM
- XLOW
- QFNK
- QJIT
- OLTI
- CNF
- DRMW
- VXQ
- RKJU
- UDLQ
- ODM
- ANZS
- SBJO
- NIAR
- UWP
- OZNK
- MNKO
- UTFO
- PMAL
- KRAP
- JKHL
- KZIP
- UTFO
- UBPC
- OFQ
- GGTV
- PRGV
- MJPO
- UGLB
- PRGV
- HPSG
- HSKN
- LLEB
- KSED
- URHS
- LTFE
- NKQP
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