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 BOAT is written as YLZG, how is FROG written in the same code? (a) UILT (b) VJMU (c) GSPH (d) THKS
- 2.If DRUM is written as MURD, how is MOON written in the same code? (a) NPPO (b) MNNL (c) OPPN (d) NOOM
- 3.If GOLD is written as TLOW, how is NEST written in the same code? (a) NWIH (b) OFTU (c) LUGF (d) MVHG
- 4.If LION is written as NOIL, how is SUN written in the same code? (a) MTR (b) TVO (c) NUS (d) OVT
- 5.If SUN is written as NUS, how is RAIN written in the same code? (a) MHZQ (b) SBJO (c) OJBS (d) NIAR
- 6.If JUMP is written as HSKN, how is DOG written in the same code? (a) FQI (b) ALD (c) CNF (d) BME
- 7.If JUMP is written as QFNK, how is DESK written in the same code? (a) EFTL (b) WVHP (c) XWIQ (d) VUGO
- 8.If LION is written as ORLM, how is GOLD written in the same code? (a) SKNV (b) UMPX (c) HPME (d) TLOW
- 9.If DOG is written as GOD, how is GOLD written in the same code? (a) CKNF (b) HPME (c) EMPH (d) DLOG
- 10.If MOON is written as LNNM, how is CAKE written in the same code? (a) DBLF (b) BZJD (c) CAKE (d) AYIC
- 11.If SUN is written as HFM, how is DRUM written in the same code? (a) ESVN (b) XJGO (c) WIFN (d) VHEM
- 12.If FISH is written as HKUJ, how is STAR written in the same code? (a) QRYP (b) VWDU (c) UVCT (d) TUBS
- 13.If COLD is written as EMPD, how is SUN written in the same code? (a) MTR (b) TVO (c) OVT (d) NUS
- 14.If TREE is written as EERT, how is DOG written in the same code? (a) FNC (b) EPH (c) HPE (d) GOD
- 15.If FISH is written as GJTI, how is NEST written in the same code? (a) UTFO (b) MDRS (c) PGUV (d) OFTU
- 16.If LAMP is written as PMAL, how is TOYS written in the same code? (a) SYOT (b) TZPU (c) UPZT (d) RXNS
- 17.If SHIP is written as HSRK, how is DOG written in the same code? (a) VKS (b) XMU (c) EPH (d) WLT
- 18.If BELL is written as EHOO, how is CAKE written in the same code? (a) GEOI (b) ZXHB (c) FDNH (d) ECMG
- 19.If TREE is written as GGTV, how is BELL written in the same code? (a) JJCZ (b) LLEB (c) NNGD (d) DGNN
- 20.If BALL is written as MMBC, how is FROG written in the same code? (a) FNQE (b) GSPH (c) GORF (d) HPSG
- 21.If BOAT is written as VCQD, how is BOOK written in the same code? (a) IMMZ (b) KOOB (c) MQQD (d) DQQM
- 22.If BELL is written as DGNN, how is HAND written in the same code? (a) KDQG (b) JCPF (c) FYLB (d) IBOE
- 23.If PARK is written as OZQJ, how is WIND written in the same code? (a) UGLB (b) VHMC (c) XJOE (d) WIND
- 24.If MILK is written as LMJN, how is MOON written in the same code? (a) NOOM (b) MNNL (c) NPPO (d) OPPN
- 25.If PARK is written as KZIP, how is FISH written in the same code? (a) VSIT (b) URHS (c) TQGR (d) GJTI
- 26.If GOLD is written as DLOG, how is JUMP written in the same code? (a) OLTI (b) QNVK (c) PMUJ (d) KVNQ
- 27.If BOOK is written as ZMMI, how is MILK written in the same code? (a) OKNM (b) KGJI (c) LHKJ (d) JFIH
- 28.If STAR is written as QRYP, how is SHIP written in the same code? (a) RGHO (b) QFGN (c) PEFM (d) UJKR
- 29.If COLD is written as EMPD, how is DRUM written in the same code? (a) MURD (b) LTQC (c) ESVN (d) NVSE
- 30.If BALL is written as AZKK, how is COLD written in the same code? (a) BNKC (b) COLD (c) AMJB (d) DPME
- 31.If FROG is written as GORF, how is SUN written in the same code? (a) NUS (b) OVT (c) TVO (d) MTR
- 32.If FROG is written as GORF, how is TREE written in the same code? (a) FFSU (b) EERT (c) DDQS (d) USFF
- 33.If LION is written as OPJM, how is RAIN written in the same code? (a) MHZQ (b) OJBS (c) NIAR (d) SBJO
- 34.If CAKE is written as EKAC, how is TREE written in the same code? (a) FFSU (b) USFF (c) EERT (d) DDQS
- 35.If BELL is written as MMFC, how is RAIN written in the same code? (a) NIAR (b) SBJO (c) OJBS (d) MHZQ
- 36.If BOAT is written as TAOB, how is COLD written in the same code? (a) CKNB (b) DPME (c) DLOC (d) EMPD
- 37.If TREE is written as GGTV, how is MOON written in the same code? (a) LMMK (b) NOOM (c) OQQP (d) PQQO
- 38.If BOOK is written as CPPL, how is GOLD written in the same code? (a) HPME (b) FNKC (c) IQNF (d) EMPH
- 39.If PARK is written as KZIP, how is CAKE written in the same code? (a) WYOU (b) YAQW (c) DBLF (d) XZPV
- 40.If PARK is written as MTCR, how is FISH written in the same code? (a) JUKH (b) FQGD (c) HKUJ (d) HSIF
Answer key
- UILT
- NOOM
- MVHG
- NUS
- NIAR
- BME
- WVHP
- TLOW
- DLOG
- BZJD
- WIFN
- UVCT
- OVT
- GOD
- OFTU
- SYOT
- WLT
- FDNH
- NNGD
- HPSG
- MQQD
- JCPF
- VHMC
- OPPN
- URHS
- PMUJ
- KGJI
- QFGN
- NVSE
- BNKC
- NUS
- EERT
- OJBS
- EERT
- OJBS
- DLOC
- PQQO
- HPME
- XZPV
- JUKH
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