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 KITE is written as ETIK, how is CAT written in the same code? (a) UBD (b) DBU (c) TAC (d) SZB
- 2.If CAT is written as XZG, how is DRUM written in the same code? (a) VHEM (b) WIFN (c) ESVN (d) XJGO
- 3.If DESK is written as WVHP, how is BELL written in the same code? (a) CFMM (b) XUNN (c) YVOO (d) ZWPP
- 4.If LION is written as OPJM, how is BOOK written in the same code? (a) CPPL (b) JNNA (c) KOOB (d) LPPC
- 5.If JUMP is written as LWOR, how is RAIN written in the same code? (a) TCKP (b) PYGL (c) UDLQ (d) SBJO
- 6.If RAIN is written as IZRM, how is DOG written in the same code? (a) XMU (b) EPH (c) WLT (d) VKS
- 7.If GOLD is written as TLOW, how is JUMP written in the same code? (a) QFNK (b) PEMJ (c) RGOL (d) KVNQ
- 8.If PARK is written as OZQJ, how is DOG written in the same code? (a) DOG (b) BME (c) CNF (d) EPH
- 9.If PARK is written as KZIP, how is BELL written in the same code? (a) YVOO (b) XUNN (c) CFMM (d) ZWPP
- 10.If NEST is written as TSEN, how is GOLD written in the same code? (a) HPME (b) CKNF (c) DLOG (d) EMPH
- 11.If DOG is written as FNC, how is MOON written in the same code? (a) OPPN (b) LNNM (c) NOOM (d) MNNL
- 12.If DESK is written as MUGF, how is LAMP written in the same code? (a) ROCN (b) PMAL (c) NCOR (d) NKYJ
- 13.If TREE is written as DDQS, how is CAT written in the same code? (a) BZS (b) SZB (c) UBD (d) TAC
- 14.If CAT is written as UBD, how is LAMP written in the same code? (a) OLZK (b) MBNQ (c) PMAL (d) QNBM
- 15.If WIND is written as DRMW, how is MILK written in the same code? (a) NROP (b) NJML (c) MQNO (d) OSPQ
- 16.If TREE is written as FFSU, how is PEN written in the same code? (a) OFQ (b) QFO (c) MDO (d) NEP
- 17.If KITE is written as LJUF, how is CAT written in the same code? (a) UBD (b) BZS (c) DBU (d) ECV
- 18.If LION is written as ORLM, how is CAKE written in the same code? (a) WYOU (b) DBLF (c) XZPV (d) YAQW
- 19.If BOOK is written as YLLP, how is KITE written in the same code? (a) PRGV (b) LJUF (c) OQFU (d) QSHW
- 20.If TOYS is written as GLBH, how is DOG written in the same code? (a) WLT (b) VKS (c) XMU (d) EPH
- 21.If TOYS is written as GLBH, how is FROG written in the same code? (a) VJMU (b) UILT (c) THKS (d) GSPH
- 22.If PEN is written as NEP, how is SHIP written in the same code? (a) TIJQ (b) PIHS (c) QJIT (d) OHGR
- 23.If GOLD is written as CKNF, how is JUMP written in the same code? (a) ITLO (b) OLTI (c) QNVK (d) PMUJ
- 24.If LAMP is written as PMAL, how is BOOK written in the same code? (a) JNNA (b) LPPC (c) KOOB (d) CPPL
- 25.If DOG is written as HPE, how is TREE written in the same code? (a) USFF (b) FFSU (c) DDQS (d) EERT
- 26.If CAT is written as UBD, how is FROG written in the same code? (a) HPSG (b) GORF (c) FNQE (d) GSPH
- 27.If NEST is written as MVHG, how is MOON written in the same code? (a) NPPO (b) MKKL (c) OMMN (d) NLLM
- 28.If FISH is written as ILVK, how is BELL written in the same code? (a) YBII (b) FIPP (c) DGNN (d) EHOO
- 29.If DOG is written as GRJ, how is RAIN written in the same code? (a) VEMR (b) OXFK (c) TCKP (d) UDLQ
- 30.If BALL is written as DCNN, how is LION written in the same code? (a) OLRQ (b) JGML (c) NKQP (d) MJPO
- 31.If JUMP is written as PMUJ, how is NEST written in the same code? (a) SRDM (b) TSEN (c) UTFO (d) OFTU
- 32.If PEN is written as MDO, how is GOLD written in the same code? (a) DLOG (b) EMPH (c) FNKC (d) CKNF
- 33.If MILK is written as LMJN, how is LAMP written in the same code? (a) PMAL (b) QNBM (c) OLZK (d) MBNQ
- 34.If TREE is written as GIVV, how is BOOK written in the same code? (a) ZMMQ (b) CPPL (c) XKKO (d) YLLP
- 35.If DESK is written as LTFE, how is CAKE written in the same code? (a) DJZB (b) FLBD (c) DBLF (d) EKAC
- 36.If TREE is written as GIVV, how is CAT written in the same code? (a) XZG (b) WYF (c) YAH (d) DBU
- 37.If MOON is written as KMML, how is PEN written in the same code? (a) MBK (b) ODM (c) NCL (d) RGP
- 38.If TOYS is written as SYOT, how is BALL written in the same code? (a) LLAB (b) CBMM (c) MMBC (d) KKZA
- 39.If BALL is written as AZKK, how is DRUM written in the same code? (a) CQTL (b) DRUM (c) ESVN (d) BPSK
- 40.If BALL is written as LLAB, how is DOG written in the same code? (a) GOD (b) FNC (c) EPH (d) HPE
Answer key
- TAC
- WIFN
- YVOO
- LPPC
- TCKP
- WLT
- QFNK
- CNF
- YVOO
- DLOG
- MNNL
- ROCN
- SZB
- QNBM
- NROP
- OFQ
- DBU
- XZPV
- PRGV
- WLT
- UILT
- PIHS
- OLTI
- KOOB
- FFSU
- HPSG
- NLLM
- EHOO
- UDLQ
- NKQP
- TSEN
- CKNF
- QNBM
- YLLP
- FLBD
- XZG
- NCL
- LLAB
- CQTL
- GOD
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