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 STAR is written as SBUT, how is DOG written in the same code? (a) FNC (b) HPE (c) GOD (d) EPH
- 2.If BOOK is written as KOOB, how is DRUM written in the same code? (a) LTQC (b) NVSE (c) ESVN (d) MURD
- 3.If SUN is written as VXQ, how is CAKE written in the same code? (a) FDNH (b) GEOI (c) ZXHB (d) ECMG
- 4.If MILK is written as KLIM, how is COLD written in the same code? (a) DLOC (b) CKNB (c) DPME (d) EMPD
- 5.If TREE is written as FFSU, how is LAMP written in the same code? (a) OLZK (b) PMAL (c) QNBM (d) MBNQ
- 6.If MOON is written as NPPO, how is DRUM written in the same code? (a) ESVN (b) FTWO (c) CQTL (d) NVSE
- 7.If DOG is written as WLT, how is FISH written in the same code? (a) VSIT (b) TQGR (c) GJTI (d) URHS
- 8.If FISH is written as URHS, how is LAMP written in the same code? (a) NYMJ (b) OZNK (c) MBNQ (d) PAOL
- 9.If DRUM is written as MURD, how is HAND written in the same code? (a) CMZG (b) EOBI (c) IBOE (d) DNAH
- 10.If BALL is written as EDOO, how is GOLD written in the same code? (a) IQNF (b) DLIA (c) KSPH (d) JROG
- 11.If JUMP is written as ROWL, how is TOYS written in the same code? (a) VQAU (b) SYOT (c) QWMR (d) UAQV
- 12.If DESK is written as CDRJ, how is DOG written in the same code? (a) EPH (b) BME (c) DOG (d) CNF
- 13.If BELL is written as LLEB, how is CAKE written in the same code? (a) DBLF (b) DJZB (c) EKAC (d) FLBD
- 14.If KITE is written as DSHJ, how is HAND written in the same code? (a) GZMC (b) EOBI (c) CMZG (d) DNAH
- 15.If COLD is written as XLOW, how is DOG written in the same code? (a) XMU (b) WLT (c) EPH (d) VKS
- 16.If KITE is written as MKVG, how is HAND written in the same code? (a) IBOE (b) KDQG (c) FYLB (d) JCPF
- 17.If LION is written as OPJM, how is MILK written in the same code? (a) JKHL (b) KLIM (c) NJML (d) LMJN
- 18.If KITE is written as FUJL, how is DESK written in the same code? (a) LTFE (b) JRDC (c) EFTL (d) KSED
- 19.If SUN is written as HFM, how is FROG written in the same code? (a) UILT (b) THKS (c) GSPH (d) VJMU
- 20.If TREE is written as GGTV, how is DRUM written in the same code? (a) KSPB (b) OWTF (c) MURD (d) FTWO
- 21.If TOYS is written as UPZT, how is SHIP written in the same code? (a) RGHO (b) UJKR (c) TIJQ (d) QJIT
- 22.If DOG is written as BME, how is PARK written in the same code? (a) MXOH (b) OZQJ (c) RCTM (d) NYPI
- 23.If DOG is written as GOD, how is BOOK written in the same code? (a) CPPL (b) JNNA (c) LPPC (d) KOOB
- 24.If LION is written as MNHK, how is CAT written in the same code? (a) TAC (b) BZS (c) UBD (d) SZB
- 25.If WIND is written as DNIW, how is BOOK written in the same code? (a) JNNA (b) CPPL (c) KOOB (d) LPPC
- 26.If LAMP is written as ROCN, how is BOAT written in the same code? (a) RYMZ (b) TAOB (c) VCQD (d) DQCV
- 27.If RAIN is written as NIAR, how is DOG written in the same code? (a) HPE (b) EPH (c) FNC (d) GOD
- 28.If SUN is written as TVO, how is GOLD written in the same code? (a) EMPH (b) FNKC (c) HPME (d) IQNF
- 29.If BELL is written as LLEB, how is SUN written in the same code? (a) TVO (b) NUS (c) OVT (d) MTR
- 30.If CAT is written as VCE, how is DESK written in the same code? (a) KSED (b) MUGF (c) FGUM (d) IQCB
- 31.If TREE is written as EERT, how is DRUM written in the same code? (a) ESVN (b) NVSE (c) LTQC (d) MURD
- 32.If PEN is written as PGR, how is WIND written in the same code? (a) DNIW (b) BLGU (c) FPKY (d) YKPF
- 33.If MILK is written as KLIM, how is DESK written in the same code? (a) JRDC (b) EFTL (c) LTFE (d) KSED
- 34.If LAMP is written as KZLO, how is KITE written in the same code? (a) JHSD (b) KITE (c) LJUF (d) IGRC
- 35.If SUN is written as HFM, how is GOLD written in the same code? (a) UMPX (b) TLOW (c) SKNV (d) HPME
- 36.If NEST is written as TSEN, how is DRUM written in the same code? (a) ESVN (b) NVSE (c) MURD (d) LTQC
- 37.If STAR is written as UVCT, how is PARK written in the same code? (a) QBSL (b) RCTM (c) NYPI (d) SDUN
- 38.If DESK is written as EFTL, how is BELL written in the same code? (a) CFMM (b) ADKK (c) DGNN (d) MMFC
- 39.If BALL is written as MMBC, how is CAKE written in the same code? (a) EKAC (b) DBLF (c) DJZB (d) FLBD
- 40.If BOAT is written as UBPC, how is LAMP written in the same code? (a) PMAL (b) OLZK (c) MBNQ (d) QNBM
Answer key
- HPE
- MURD
- FDNH
- DLOC
- QNBM
- ESVN
- URHS
- OZNK
- DNAH
- JROG
- UAQV
- CNF
- EKAC
- CMZG
- WLT
- JCPF
- LMJN
- LTFE
- UILT
- OWTF
- TIJQ
- NYPI
- KOOB
- SZB
- KOOB
- VCQD
- GOD
- HPME
- NUS
- MUGF
- MURD
- FPKY
- KSED
- JHSD
- TLOW
- MURD
- RCTM
- CFMM
- FLBD
- QNBM
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