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 KITE written in the same code? (a) ETIK (b) FUJL (c) DSHJ (d) LJUF
- 2.If TREE is written as RPCC, how is BELL written in the same code? (a) ADKK (b) YBII (c) DGNN (d) ZCJJ
- 3.If DESK is written as KSED, how is FISH written in the same code? (a) HSIF (b) GRHE (c) GJTI (d) ITJG
- 4.If TREE is written as GIVV, how is MOON written in the same code? (a) NPPO (b) MKKL (c) NLLM (d) OMMN
- 5.If LION is written as MNHK, how is SHIP written in the same code? (a) PIHS (b) RGHO (c) OHGR (d) QJIT
- 6.If STAR is written as RATS, how is CAKE written in the same code? (a) EKAC (b) DBLF (c) FLBD (d) DJZB
- 7.If PEN is written as OFQ, how is STAR written in the same code? (a) TUBS (b) SBUT (c) QZSR (d) RATS
- 8.If FROG is written as GORF, how is FISH written in the same code? (a) GJTI (b) GRHE (c) ITJG (d) HSIF
- 9.If TOYS is written as RMWQ, how is LION written in the same code? (a) JGML (b) KHNM (c) NKQP (d) IFLK
- 10.If GOLD is written as CKNF, how is CAT written in the same code? (a) SZB (b) UBD (c) TAC (d) BZS
- 11.If HAND is written as FYLB, how is DOG written in the same code? (a) ALD (b) FQI (c) CNF (d) BME
- 12.If PARK is written as KZIP, how is TOYS written in the same code? (a) FKAG (b) UPZT (c) HMCI (d) GLBH
- 13.If FROG is written as FNQE, how is GOLD written in the same code? (a) CKNF (b) EMPH (c) FNKC (d) DLOG
- 14.If NEST is written as SRDM, how is TOYS written in the same code? (a) SNXR (b) TZPU (c) RXNS (d) SYOT
- 15.If BOOK is written as ZMMI, how is DOG written in the same code? (a) FQI (b) CNF (c) BME (d) ALD
- 16.If CAT is written as TAC, how is COLD written in the same code? (a) DPME (b) CKNB (c) EMPD (d) DLOC
- 17.If NEST is written as TSEN, how is DOG written in the same code? (a) HPE (b) GOD (c) FNC (d) EPH
- 18.If SHIP is written as PIHS, how is CAKE written in the same code? (a) DJZB (b) EKAC (c) FLBD (d) DBLF
- 19.If LAMP is written as PMAL, how is KITE written in the same code? (a) DSHJ (b) ETIK (c) LJUF (d) FUJL
- 20.If FROG is written as UILT, how is LION written in the same code? (a) NQKL (b) PSMN (c) MJPO (d) ORLM
- 21.If KITE is written as PRGV, how is GOLD written in the same code? (a) SKNV (b) TLOW (c) HPME (d) UMPX
- 22.If STAR is written as HGZI, how is FISH written in the same code? (a) TQGR (b) GJTI (c) URHS (d) VSIT
- 23.If TREE is written as DDQS, how is STAR written in the same code? (a) SBUT (b) RSZQ (c) QZSR (d) RATS
- 24.If DRUM is written as NVSE, how is COLD written in the same code? (a) DPME (b) CKNB (c) DLOC (d) EMPD
- 25.If DOG is written as BME, how is TREE written in the same code? (a) VTGG (b) RPCC (c) QOBB (d) SQDD
- 26.If BOOK is written as DQQM, how is TREE written in the same code? (a) WUHH (b) RPCC (c) VTGG (d) USFF
- 27.If CAT is written as TAC, how is PARK written in the same code? (a) LSBQ (b) JQZO (c) KRAP (d) QBSL
- 28.If MILK is written as KGJI, how is BALL written in the same code? (a) ZYJJ (b) AZKK (c) YXII (d) DCNN
- 29.If COLD is written as FROG, how is BALL written in the same code? (a) EDOO (b) DCNN (c) FEPP (d) YXII
- 30.If SUN is written as HFM, how is JUMP written in the same code? (a) RGOL (b) KVNQ (c) PEMJ (d) QFNK
- 31.If TREE is written as GIVV, how is BOOK written in the same code? (a) XKKO (b) YLLP (c) CPPL (d) ZMMQ
- 32.If HAND is written as JCPF, how is LION written in the same code? (a) JGML (b) MJPO (c) OLRQ (d) NKQP
- 33.If JUMP is written as ITLO, how is SUN written in the same code? (a) RTM (b) TVO (c) QSL (d) SUN
- 34.If RAIN is written as IZRM, how is TOYS written in the same code? (a) UPZT (b) HMCI (c) FKAG (d) GLBH
- 35.If FISH is written as HSIF, how is CAKE written in the same code? (a) EKAC (b) FLBD (c) DJZB (d) DBLF
- 36.If RAIN is written as UDLQ, how is DESK written in the same code? (a) HIWO (b) FGUM (c) GHVN (d) ABPH
- 37.If LION is written as PQKN, how is PEN written in the same code? (a) RGP (b) NEP (c) LCN (d) PGR
- 38.If NEST is written as UTFO, how is DRUM written in the same code? (a) LTQC (b) ESVN (c) NVSE (d) MURD
- 39.If MILK is written as KLIM, how is TOYS written in the same code? (a) UPZT (b) TZPU (c) SYOT (d) RXNS
- 40.If RAIN is written as IZRM, how is KITE written in the same code? (a) LJUF (b) QSHW (c) OQFU (d) PRGV
Answer key
- ETIK
- ZCJJ
- HSIF
- NLLM
- OHGR
- EKAC
- SBUT
- HSIF
- JGML
- SZB
- BME
- GLBH
- CKNF
- RXNS
- BME
- DLOC
- GOD
- EKAC
- ETIK
- ORLM
- TLOW
- URHS
- QZSR
- EMPD
- RPCC
- VTGG
- KRAP
- ZYJJ
- EDOO
- QFNK
- YLLP
- NKQP
- RTM
- GLBH
- EKAC
- GHVN
- PGR
- NVSE
- SYOT
- PRGV
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