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 SHIP is written as RKJU, how is DRUM written in the same code? (a) MURD (b) KSPB (c) OWTF (d) FTWO
- 2.If PARK is written as KRAP, how is JUMP written in the same code? (a) KVNQ (b) PMUJ (c) QNVK (d) OLTI
- 3.If BALL is written as MMBC, how is STAR written in the same code? (a) SBUT (b) TUBS (c) QZSR (d) RATS
- 4.If TREE is written as DDQS, how is HAND written in the same code? (a) GZMC (b) CMZG (c) EOBI (d) DNAH
- 5.If TOYS is written as UPZT, how is GOLD written in the same code? (a) IQNF (b) EMPH (c) FNKC (d) HPME
- 6.If CAKE is written as AYIC, how is MILK written in the same code? (a) OKNM (b) JFIH (c) LHKJ (d) KGJI
- 7.If FROG is written as UILT, how is SHIP written in the same code? (a) ITSL (b) TIJQ (c) GRQJ (d) HSRK
- 8.If TREE is written as EERT, how is GOLD written in the same code? (a) CKNF (b) HPME (c) DLOG (d) EMPH
- 9.If MILK is written as KLIM, how is CAT written in the same code? (a) TAC (b) UBD (c) SZB (d) DBU
- 10.If FISH is written as DGQF, how is BOOK written in the same code? (a) YLLH (b) DQQM (c) ANNJ (d) ZMMI
- 11.If DOG is written as GOD, how is BELL written in the same code? (a) CFMM (b) LLEB (c) MMFC (d) KKDA
- 12.If HAND is written as SZMW, how is DOG written in the same code? (a) XMU (b) VKS (c) WLT (d) EPH
- 13.If DRUM is written as ESVN, how is BALL written in the same code? (a) DCNN (b) AZKK (c) MMBC (d) CBMM
- 14.If MILK is written as KLIM, how is DESK written in the same code? (a) LTFE (b) JRDC (c) EFTL (d) KSED
- 15.If BALL is written as EDOO, how is KITE written in the same code? (a) MKVG (b) NLWH (c) HFQB (d) OMXI
- 16.If HAND is written as DNAH, how is CAKE written in the same code? (a) DJZB (b) FLBD (c) EKAC (d) DBLF
- 17.If JUMP is written as QFNK, how is SUN written in the same code? (a) IGN (b) GEL (c) TVO (d) HFM
- 18.If LION is written as KHNM, how is CAKE written in the same code? (a) BZJD (b) AYIC (c) DBLF (d) CAKE
- 19.If SHIP is written as OHGR, how is PARK written in the same code? (a) KRAP (b) JQZO (c) LSBQ (d) OZQJ
- 20.If CAKE is written as XZPV, how is SUN written in the same code? (a) TVO (b) HFM (c) IGN (d) GEL
- 21.If CAT is written as BZS, how is DESK written in the same code? (a) DESK (b) BCQI (c) CDRJ (d) EFTL
- 22.If BOOK is written as CPPL, how is MILK written in the same code? (a) OKNM (b) LMJN (c) LHKJ (d) NJML
- 23.If FROG is written as GSPH, how is FISH written in the same code? (a) ITJG (b) EHRG (c) HKUJ (d) GJTI
- 24.If LAMP is written as QNBM, how is NEST written in the same code? (a) SRDM (b) TSEN (c) UTFO (d) OFTU
- 25.If KITE is written as DSHJ, how is TOYS written in the same code? (a) SNXR (b) RXNS (c) SYOT (d) TZPU
- 26.If FROG is written as DPME, how is GOLD written in the same code? (a) IQNF (b) FNKC (c) DLIA (d) EMJB
- 27.If GOLD is written as HPME, how is STAR written in the same code? (a) TUBS (b) SBUT (c) UVCT (d) RSZQ
- 28.If MOON is written as OQQP, how is SHIP written in the same code? (a) VKLS (b) UJKR (c) TIJQ (d) QFGN
- 29.If STAR is written as RSZQ, how is JUMP written in the same code? (a) JUMP (b) KVNQ (c) ITLO (d) HSKN
- 30.If DRUM is written as FTWO, how is TOYS written in the same code? (a) RMWQ (b) VQAU (c) WRBV (d) UPZT
- 31.If BOAT is written as UBPC, how is BALL written in the same code? (a) KKZA (b) CBMM (c) MMBC (d) LLAB
- 32.If WIND is written as FPKY, how is MILK written in the same code? (a) OKNM (b) IJGK (c) KLIM (d) MNKO
- 33.If TREE is written as FFSU, how is BOOK written in the same code? (a) JNNA (b) KOOB (c) CPPL (d) LPPC
- 34.If TOYS is written as SYOT, how is WIND written in the same code? (a) EOJX (b) DNIW (c) CMHV (d) XJOE
- 35.If MILK is written as NROP, how is TOYS written in the same code? (a) HMCI (b) GLBH (c) UPZT (d) FKAG
- 36.If DOG is written as BME, how is RAIN written in the same code? (a) QZHM (b) PYGL (c) OXFK (d) TCKP
- 37.If DESK is written as WVHP, how is CAKE written in the same code? (a) YAQW (b) WYOU (c) XZPV (d) DBLF
- 38.If FISH is written as GRHE, how is BOAT written in the same code? (a) SZNA (b) UBPC (c) TAOB (d) ANZS
- 39.If LAMP is written as PMAL, how is TREE written in the same code? (a) USFF (b) FFSU (c) EERT (d) DDQS
- 40.If LAMP is written as OZNK, how is LION written in the same code? (a) ORLM (b) MJPO (c) PSMN (d) NQKL
Answer key
- OWTF
- PMUJ
- SBUT
- CMZG
- HPME
- KGJI
- HSRK
- DLOG
- TAC
- ZMMI
- LLEB
- WLT
- CBMM
- KSED
- NLWH
- EKAC
- HFM
- BZJD
- JQZO
- HFM
- CDRJ
- NJML
- GJTI
- UTFO
- RXNS
- EMJB
- TUBS
- UJKR
- ITLO
- VQAU
- MMBC
- MNKO
- LPPC
- DNIW
- GLBH
- PYGL
- XZPV
- SZNA
- EERT
- ORLM
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