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 NEP, how is STAR written in the same code? (a) SBUT (b) QZSR (c) RATS (d) TUBS
- 2.If CAT is written as XZG, how is DESK written in the same code? (a) XWIQ (b) EFTL (c) WVHP (d) VUGO
- 3.If MILK is written as KGJI, how is BOOK written in the same code? (a) DQQM (b) YLLH (c) ZMMI (d) ANNJ
- 4.If TREE is written as GIVV, how is LAMP written in the same code? (a) OZNK (b) PAOL (c) NYMJ (d) MBNQ
- 5.If PARK is written as KZIP, how is FROG written in the same code? (a) THKS (b) GSPH (c) UILT (d) VJMU
- 6.If SUN is written as NUS, how is PARK written in the same code? (a) LSBQ (b) KRAP (c) JQZO (d) QBSL
- 7.If MOON is written as NLLM, how is FISH written in the same code? (a) GJTI (b) VSIT (c) TQGR (d) URHS
- 8.If GOLD is written as EMJB, how is FROG written in the same code? (a) HTQI (b) COLD (c) EQNF (d) DPME
- 9.If STAR is written as QRYP, how is CAT written in the same code? (a) BZS (b) ECV (c) ZXQ (d) AYR
- 10.If FISH is written as HSIF, how is CAT written in the same code? (a) SZB (b) TAC (c) UBD (d) DBU
- 11.If FROG is written as GORF, how is COLD written in the same code? (a) DPME (b) EMPD (c) DLOC (d) CKNB
- 12.If PEN is written as NEP, how is GOLD written in the same code? (a) CKNF (b) DLOG (c) EMPH (d) HPME
- 13.If CAT is written as XZG, how is BOAT written in the same code? (a) CPBU (b) YLZG (c) ZMAH (d) XKYF
- 14.If BOOK is written as YLLP, how is GOLD written in the same code? (a) UMPX (b) TLOW (c) HPME (d) SKNV
- 15.If SUN is written as UWP, how is CAT written in the same code? (a) ECV (b) DBU (c) AYR (d) FDW
- 16.If WIND is written as EOJX, how is FISH written in the same code? (a) GJTI (b) ITJG (c) HSIF (d) GRHE
- 17.If KITE is written as GVKM, how is CAT written in the same code? (a) RYA (b) ECV (c) TAC (d) VCE
- 18.If HAND is written as DNAH, how is SHIP written in the same code? (a) QJIT (b) TIJQ (c) OHGR (d) PIHS
- 19.If KITE is written as ETIK, how is TREE written in the same code? (a) USFF (b) EERT (c) DDQS (d) FFSU
- 20.If HAND is written as GZMC, how is TOYS written in the same code? (a) SNXR (b) RMWQ (c) UPZT (d) TOYS
- 21.If JUMP is written as QFNK, how is GOLD written in the same code? (a) TLOW (b) SKNV (c) HPME (d) UMPX
- 22.If KITE is written as NLWH, how is BOOK written in the same code? (a) ERRN (b) FSSO (c) DQQM (d) YLLH
- 23.If SUN is written as HFM, how is TREE written in the same code? (a) USFF (b) FHUU (c) GIVV (d) HJWW
- 24.If BOOK is written as LPPC, how is FROG written in the same code? (a) FNQE (b) GSPH (c) GORF (d) HPSG
- 25.If PEN is written as PGR, how is MILK written in the same code? (a) KLIM (b) MNKO (c) IJGK (d) OKNM
- 26.If BALL is written as MMBC, how is DOG written in the same code? (a) HPE (b) EPH (c) GOD (d) FNC
- 27.If RAIN is written as TCKP, how is PARK written in the same code? (a) NYPI (b) SDUN (c) RCTM (d) QBSL
- 28.If GOLD is written as DLOG, how is JUMP written in the same code? (a) OLTI (b) QNVK (c) KVNQ (d) PMUJ
- 29.If PEN is written as MDO, how is PARK written in the same code? (a) OZQJ (b) KRAP (c) JQZO (d) LSBQ
- 30.If DRUM is written as LTQC, how is JUMP written in the same code? (a) ITLO (b) OLTI (c) QNVK (d) PMUJ
- 31.If FROG is written as DPME, how is BOAT written in the same code? (a) DQCV (b) YLXQ (c) ANZS (d) ZMYR
- 32.If TREE is written as EERT, how is PARK written in the same code? (a) QBSL (b) LSBQ (c) KRAP (d) JQZO
- 33.If PEN is written as ODM, how is LAMP written in the same code? (a) JYKN (b) KZLO (c) LAMP (d) MBNQ
- 34.If BALL is written as ZYJJ, how is MILK written in the same code? (a) LHKJ (b) KGJI (c) JFIH (d) OKNM
- 35.If BOOK is written as YLLP, how is TREE written in the same code? (a) HJWW (b) USFF (c) FHUU (d) GIVV
- 36.If GOLD is written as CKNF, how is JUMP written in the same code? (a) ITLO (b) PMUJ (c) OLTI (d) QNVK
- 37.If FROG is written as UILT, how is TOYS written in the same code? (a) FKAG (b) HMCI (c) UPZT (d) GLBH
- 38.If MOON is written as OQQP, how is JUMP written in the same code? (a) MXPS (b) LWOR (c) HSKN (d) KVNQ
- 39.If STAR is written as QZSR, how is DRUM written in the same code? (a) MURD (b) NVSE (c) CQTL (d) LTQC
- 40.If BOAT is written as CPBU, how is TREE written in the same code? (a) SQDD (b) USFF (c) VTGG (d) FFSU
Answer key
- RATS
- WVHP
- ZMMI
- OZNK
- UILT
- KRAP
- URHS
- DPME
- AYR
- TAC
- DLOC
- DLOG
- YLZG
- TLOW
- ECV
- ITJG
- VCE
- PIHS
- EERT
- SNXR
- TLOW
- ERRN
- GIVV
- HPSG
- MNKO
- HPE
- RCTM
- PMUJ
- JQZO
- OLTI
- ZMYR
- KRAP
- KZLO
- KGJI
- GIVV
- OLTI
- GLBH
- LWOR
- LTQC
- USFF
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