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 WIND is written as DNIW, how is BOOK written in the same code? (a) KOOB (b) CPPL (c) JNNA (d) LPPC
- 2.If BELL is written as MMFC, how is CAKE written in the same code? (a) DJZB (b) FLBD (c) EKAC (d) DBLF
- 3.If KITE is written as NLWH, how is STAR written in the same code? (a) PQXO (b) UVCT (c) WXEV (d) VWDU
- 4.If PEN is written as NEP, how is FROG written in the same code? (a) GSPH (b) FNQE (c) GORF (d) HPSG
- 5.If FISH is written as GJTI, how is BOOK written in the same code? (a) ANNJ (b) DQQM (c) CPPL (d) LPPC
- 6.If LION is written as MJPO, how is TOYS written in the same code? (a) TZPU (b) UPZT (c) VQAU (d) SNXR
- 7.If STAR is written as SBUT, how is JUMP written in the same code? (a) PMUJ (b) OLTI (c) QNVK (d) KVNQ
- 8.If TREE is written as SQDD, how is STAR written in the same code? (a) QRYP (b) STAR (c) TUBS (d) RSZQ
- 9.If HAND is written as SZMW, how is BOOK written in the same code? (a) ZMMQ (b) XKKO (c) CPPL (d) YLLP
- 10.If BOOK is written as MQQD, how is HAND written in the same code? (a) DNAH (b) BLYF (c) JCPF (d) FPCJ
- 11.If CAT is written as XZG, how is COLD written in the same code? (a) XLOW (b) DPME (c) WKNV (d) YMPX
- 12.If MILK is written as KGJI, how is CAT written in the same code? (a) ECV (b) AYR (c) BZS (d) ZXQ
- 13.If BOOK is written as KOOB, how is TOYS written in the same code? (a) TZPU (b) UPZT (c) SYOT (d) RXNS
- 14.If KITE is written as PRGV, how is PEN written in the same code? (a) QFO (b) KVM (c) LWN (d) JUL
- 15.If LION is written as MJPO, how is HAND written in the same code? (a) IBOE (b) JCPF (c) GZMC (d) EOBI
- 16.If WIND is written as DRMW, how is CAT written in the same code? (a) DBU (b) YAH (c) XZG (d) WYF
- 17.If JUMP is written as QFNK, how is BOOK written in the same code? (a) XKKO (b) ZMMQ (c) YLLP (d) CPPL
- 18.If GOLD is written as TLOW, how is MILK written in the same code? (a) NROP (b) MQNO (c) NJML (d) OSPQ
- 19.If FROG is written as FNQE, how is CAT written in the same code? (a) SZB (b) UBD (c) TAC (d) BZS
- 20.If HAND is written as EOBI, how is KITE written in the same code? (a) ETIK (b) DSHJ (c) FUJL (d) LJUF
- 21.If CAT is written as BZS, how is PEN written in the same code? (a) QFO (b) NCL (c) PEN (d) ODM
- 22.If GOLD is written as FNQI, how is PEN written in the same code? (a) NEP (b) PGR (c) RGP (d) LCN
- 23.If DESK is written as KSED, how is MILK written in the same code? (a) NJML (b) JKHL (c) LMJN (d) KLIM
- 24.If FROG is written as FNQE, how is BOOK written in the same code? (a) JNNA (b) ANNJ (c) LPPC (d) KOOB
- 25.If DESK is written as WVHP, how is FROG written in the same code? (a) GSPH (b) UILT (c) THKS (d) VJMU
- 26.If FISH is written as HSIF, how is GOLD written in the same code? (a) EMPH (b) CKNF (c) HPME (d) DLOG
- 27.If PARK is written as OZQJ, how is TREE written in the same code? (a) SQDD (b) RPCC (c) TREE (d) USFF
- 28.If SHIP is written as RGHO, how is SUN written in the same code? (a) TVO (b) RTM (c) SUN (d) QSL
- 29.If NEST is written as TSEN, how is FROG written in the same code? (a) FNQE (b) GSPH (c) HPSG (d) GORF
- 30.If FROG is written as GORF, how is NEST written in the same code? (a) TSEN (b) OFTU (c) SRDM (d) UTFO
- 31.If BOAT is written as VCQD, how is CAKE written in the same code? (a) ECMG (b) EKAC (c) GMCE (d) CIYA
- 32.If MILK is written as KLIM, how is SUN written in the same code? (a) OVT (b) NUS (c) TVO (d) MTR
- 33.If CAT is written as FDW, how is DRUM written in the same code? (a) GUXP (b) AORJ (c) FTWO (d) HVYQ
- 34.If BOAT is written as UBPC, how is WIND written in the same code? (a) CMHV (b) DNIW (c) EOJX (d) XJOE
- 35.If FISH is written as URHS, how is LAMP written in the same code? (a) OZNK (b) PAOL (c) NYMJ (d) MBNQ
- 36.If TREE is written as GIVV, how is STAR written in the same code? (a) HGZI (b) TUBS (c) GFYH (d) IHAJ
- 37.If CAKE is written as GMCE, how is KITE written in the same code? (a) GVKM (b) CRGI (c) MKVG (d) ETIK
- 38.If TOYS is written as GLBH, how is KITE written in the same code? (a) LJUF (b) QSHW (c) OQFU (d) PRGV
- 39.If BELL is written as MMFC, how is DOG written in the same code? (a) GOD (b) FNC (c) EPH (d) HPE
- 40.If CAKE is written as XZPV, how is TOYS written in the same code? (a) FKAG (b) HMCI (c) GLBH (d) UPZT
Answer key
- KOOB
- FLBD
- VWDU
- GORF
- CPPL
- UPZT
- QNVK
- RSZQ
- YLLP
- FPCJ
- XLOW
- AYR
- SYOT
- KVM
- IBOE
- XZG
- YLLP
- NROP
- SZB
- FUJL
- ODM
- PGR
- KLIM
- JNNA
- UILT
- DLOG
- SQDD
- RTM
- GORF
- TSEN
- GMCE
- NUS
- GUXP
- EOJX
- OZNK
- HGZI
- GVKM
- PRGV
- HPE
- GLBH
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