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 PIHS, how is NEST written in the same code? (a) SRDM (b) TSEN (c) UTFO (d) OFTU
- 2.If LAMP is written as QNBM, how is MOON written in the same code? (a) NOOM (b) OPPN (c) MNNL (d) NPPO
- 3.If PARK is written as NYPI, how is RAIN written in the same code? (a) TCKP (b) PYGL (c) QZHM (d) OXFK
- 4.If SUN is written as PWU, how is NEST written in the same code? (a) TSEN (b) PGUV (c) RQCL (d) VUGP
- 5.If BOOK is written as ERRN, how is LION written in the same code? (a) PMSR (b) IFLK (c) NKQP (d) OLRQ
- 6.If FISH is written as URHS, how is LION written in the same code? (a) PSMN (b) NQKL (c) ORLM (d) MJPO
- 7.If SHIP is written as UJKR, how is PARK written in the same code? (a) SDUN (b) QBSL (c) RCTM (d) NYPI
- 8.If TREE is written as EERT, how is KITE written in the same code? (a) FUJL (b) ETIK (c) DSHJ (d) LJUF
- 9.If LAMP is written as OZNK, how is TREE written in the same code? (a) GIVV (b) HJWW (c) USFF (d) FHUU
- 10.If WIND is written as FPKY, how is COLD written in the same code? (a) FNQE (b) BJMA (c) DLOC (d) EQNF
- 11.If PEN is written as QFO, how is STAR written in the same code? (a) RSZQ (b) TUBS (c) SBUT (d) UVCT
- 12.If SUN is written as RTM, how is STAR written in the same code? (a) TUBS (b) STAR (c) QRYP (d) RSZQ
- 13.If CAT is written as VCE, how is BOAT written in the same code? (a) DQCV (b) VCQD (c) TAOB (d) RYMZ
- 14.If STAR is written as QZSR, how is PEN written in the same code? (a) NEP (b) ODM (c) OFQ (d) MDO
- 15.If BALL is written as NNCD, how is SUN written in the same code? (a) NUS (b) PWU (c) UWP (d) LSQ
- 16.If MILK is written as KGJI, how is DOG written in the same code? (a) BME (b) ALD (c) FQI (d) CNF
- 17.If BALL is written as CBMM, how is TOYS written in the same code? (a) TZPU (b) SNXR (c) UPZT (d) VQAU
- 18.If LAMP is written as OZNK, how is LION written in the same code? (a) MJPO (b) ORLM (c) NQKL (d) PSMN
- 19.If BOOK is written as KOOB, how is CAT written in the same code? (a) SZB (b) DBU (c) TAC (d) UBD
- 20.If CAKE is written as EKAC, how is TOYS written in the same code? (a) RXNS (b) SYOT (c) TZPU (d) UPZT
- 21.If KITE is written as ETIK, how is MILK written in the same code? (a) NJML (b) LMJN (c) JKHL (d) KLIM
- 22.If BELL is written as ADKK, how is MILK written in the same code? (a) MILK (b) LHKJ (c) KGJI (d) NJML
- 23.If FROG is written as GSPH, how is KITE written in the same code? (a) MKVG (b) JHSD (c) FUJL (d) LJUF
- 24.If COLD is written as XLOW, how is SHIP written in the same code? (a) GRQJ (b) TIJQ (c) HSRK (d) ITSL
- 25.If JUMP is written as QFNK, how is FISH written in the same code? (a) URHS (b) VSIT (c) GJTI (d) TQGR
- 26.If GOLD is written as IQNF, how is TREE written in the same code? (a) WUHH (b) RPCC (c) USFF (d) VTGG
- 27.If FISH is written as URHS, how is BOAT written in the same code? (a) CPBU (b) YLZG (c) XKYF (d) ZMAH
- 28.If SUN is written as NUS, how is LION written in the same code? (a) OPJM (b) NOIL (c) MJPO (d) MNHK
- 29.If MOON is written as NLLM, how is MILK written in the same code? (a) NJML (b) OSPQ (c) NROP (d) MQNO
- 30.If CAT is written as XZG, how is PEN written in the same code? (a) QFO (b) KVM (c) JUL (d) LWN
- 31.If PEN is written as NEP, how is BALL written in the same code? (a) CBMM (b) LLAB (c) MMBC (d) KKZA
- 32.If PEN is written as NEP, how is SHIP written in the same code? (a) TIJQ (b) OHGR (c) QJIT (d) PIHS
- 33.If PARK is written as QBSL, how is TREE written in the same code? (a) USFF (b) FFSU (c) SQDD (d) VTGG
- 34.If TREE is written as EERT, how is CAKE written in the same code? (a) DBLF (b) EKAC (c) DJZB (d) FLBD
- 35.If LION is written as MNHK, how is RAIN written in the same code? (a) MHZQ (b) OJBS (c) QZHM (d) NIAR
- 36.If SHIP is written as RKJU, how is BELL written in the same code? (a) LLEB (b) JJCZ (c) DGNN (d) NNGD
- 37.If GOLD is written as TLOW, how is DRUM written in the same code? (a) XJGO (b) WIFN (c) VHEM (d) ESVN
- 38.If FROG is written as EQNF, how is CAT written in the same code? (a) DBU (b) CAT (c) BZS (d) AYR
- 39.If COLD is written as AMJB, how is DESK written in the same code? (a) CDRJ (b) ABPH (c) FGUM (d) BCQI
- 40.If NEST is written as QHVW, how is BOOK written in the same code? (a) YLLH (b) FSSO (c) DQQM (d) ERRN
Answer key
- TSEN
- OPPN
- PYGL
- VUGP
- OLRQ
- ORLM
- RCTM
- ETIK
- GIVV
- FNQE
- TUBS
- RSZQ
- VCQD
- MDO
- PWU
- BME
- UPZT
- ORLM
- TAC
- SYOT
- KLIM
- LHKJ
- LJUF
- HSRK
- URHS
- VTGG
- YLZG
- NOIL
- NROP
- KVM
- LLAB
- PIHS
- USFF
- EKAC
- MHZQ
- NNGD
- WIFN
- BZS
- BCQI
- ERRN
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