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 TREE is written as GIVV, how is TOYS written in the same code? (a) GLBH (b) FKAG (c) UPZT (d) HMCI
- 2.If PARK is written as SDUN, how is HAND written in the same code? (a) KDQG (b) EXKA (c) JCPF (d) LERH
- 3.If CAT is written as TAC, how is PEN written in the same code? (a) OFQ (b) QFO (c) NEP (d) MDO
- 4.If WIND is written as YKPF, how is NEST written in the same code? (a) QHVW (b) OFTU (c) PGUV (d) LCQR
- 5.If STAR is written as RATS, how is BOAT written in the same code? (a) UBPC (b) SZNA (c) TAOB (d) CPBU
- 6.If BOOK is written as ZMMI, how is BALL written in the same code? (a) YXII (b) ZYJJ (c) AZKK (d) DCNN
- 7.If BOOK is written as LPPC, how is BALL written in the same code? (a) MMBC (b) CBMM (c) KKZA (d) LLAB
- 8.If CAT is written as SZB, how is TREE written in the same code? (a) SQDD (b) EERT (c) DDQS (d) FFSU
- 9.If BOOK is written as ANNJ, how is DESK written in the same code? (a) CDRJ (b) BCQI (c) DESK (d) EFTL
- 10.If FISH is written as HKUJ, how is PEN written in the same code? (a) RGP (b) QFO (c) NCL (d) SHQ
- 11.If TREE is written as WUHH, how is BALL written in the same code? (a) DCNN (b) EDOO (c) YXII (d) FEPP
- 12.If MILK is written as KGJI, how is JUMP written in the same code? (a) HSKN (b) ITLO (c) GRJM (d) LWOR
- 13.If TREE is written as USFF, how is PEN written in the same code? (a) ODM (b) RGP (c) QFO (d) OFQ
- 14.If BOOK is written as KOOB, how is JUMP written in the same code? (a) KVNQ (b) PMUJ (c) QNVK (d) OLTI
- 15.If CAT is written as SZB, how is LAMP written in the same code? (a) KZLO (b) OLZK (c) QNBM (d) PMAL
- 16.If WIND is written as DRMW, how is PEN written in the same code? (a) QFO (b) KVM (c) JUL (d) LWN
- 17.If NEST is written as MVHG, how is DRUM written in the same code? (a) ESVN (b) WIFN (c) VHEM (d) XJGO
- 18.If TREE is written as DDQS, how is LION written in the same code? (a) MNHK (b) NOIL (c) OPJM (d) KHNM
- 19.If PEN is written as PGR, how is MOON written in the same code? (a) LMMK (b) OQQP (c) PQQO (d) NOOM
- 20.If LION is written as NOIL, how is CAT written in the same code? (a) DBU (b) TAC (c) UBD (d) SZB
- 21.If BELL is written as CFMM, how is KITE written in the same code? (a) LJUF (b) FUJL (c) MKVG (d) JHSD
- 22.If BELL is written as CFMM, how is BOOK written in the same code? (a) ANNJ (b) CPPL (c) DQQM (d) LPPC
- 23.If PEN is written as NEP, how is JUMP written in the same code? (a) OLTI (b) PMUJ (c) KVNQ (d) QNVK
- 24.If STAR is written as TCVU, how is BELL written in the same code? (a) NNGD (b) JJCZ (c) DGNN (d) LLEB
- 25.If DESK is written as KSED, how is FROG written in the same code? (a) FNQE (b) GSPH (c) HPSG (d) GORF
- 26.If PEN is written as RGP, how is DOG written in the same code? (a) EPH (b) FQI (c) BME (d) GRJ
- 27.If HAND is written as SZMW, how is WIND written in the same code? (a) DRMW (b) CQLV (c) ESNX (d) XJOE
- 28.If MOON is written as OPPN, how is JUMP written in the same code? (a) OLTI (b) KVNQ (c) QNVK (d) PMUJ
- 29.If RAIN is written as MHZQ, how is BOAT written in the same code? (a) TAOB (b) SZNA (c) UBPC (d) ANZS
- 30.If WIND is written as XJOE, how is BALL written in the same code? (a) MMBC (b) AZKK (c) DCNN (d) CBMM
- 31.If GOLD is written as DLOG, how is TREE written in the same code? (a) EERT (b) USFF (c) FFSU (d) DDQS
- 32.If BOOK is written as MQQD, how is FROG written in the same code? (a) HTQI (b) IQTH (c) GORF (d) EMPD
- 33.If MOON is written as LNNM, how is FISH written in the same code? (a) DGQF (b) FISH (c) GJTI (d) EHRG
- 34.If DESK is written as MUGF, how is GOLD written in the same code? (a) DLOG (b) BJME (c) IQNF (d) FNQI
- 35.If BELL is written as NNGD, how is SUN written in the same code? (a) UWP (b) LSQ (c) NUS (d) PWU
- 36.If BOOK is written as LPPC, how is BOAT written in the same code? (a) TAOB (b) UBPC (c) CPBU (d) SZNA
- 37.If BALL is written as YZOO, how is BOAT written in the same code? (a) YLZG (b) XKYF (c) ZMAH (d) CPBU
- 38.If HAND is written as SZMW, how is FISH written in the same code? (a) VSIT (b) GJTI (c) URHS (d) TQGR
- 39.If LAMP is written as PMAL, how is BELL written in the same code? (a) MMFC (b) KKDA (c) CFMM (d) LLEB
- 40.If BOAT is written as TAOB, how is LION written in the same code? (a) MJPO (b) MNHK (c) OPJM (d) NOIL
Answer key
- GLBH
- KDQG
- NEP
- PGUV
- TAOB
- ZYJJ
- MMBC
- DDQS
- CDRJ
- RGP
- EDOO
- HSKN
- QFO
- PMUJ
- OLZK
- KVM
- WIFN
- MNHK
- PQQO
- TAC
- LJUF
- CPPL
- PMUJ
- NNGD
- GORF
- FQI
- DRMW
- QNVK
- SZNA
- CBMM
- EERT
- IQTH
- EHRG
- FNQI
- PWU
- UBPC
- YLZG
- URHS
- LLEB
- NOIL
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