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 LJUF, how is LION written in the same code? (a) KHNM (b) OPJM (c) NKQP (d) MJPO
- 2.If JUMP is written as LWOR, how is COLD written in the same code? (a) EQNF (b) AMJB (c) FROG (d) DPME
- 3.If KITE is written as LJUF, how is FISH written in the same code? (a) HKUJ (b) ITJG (c) GJTI (d) EHRG
- 4.If BOAT is written as VCQD, how is NEST written in the same code? (a) PGUV (b) TSEN (c) VUGP (d) RQCL
- 5.If DRUM is written as LTQC, how is SUN written in the same code? (a) RTM (b) MTR (c) NUS (d) OVT
- 6.If STAR is written as RATS, how is BOAT written in the same code? (a) TAOB (b) CPBU (c) UBPC (d) SZNA
- 7.If DESK is written as KSED, how is PARK written in the same code? (a) QBSL (b) JQZO (c) KRAP (d) LSBQ
- 8.If NEST is written as MVHG, how is DOG written in the same code? (a) EPH (b) XMU (c) VKS (d) WLT
- 9.If RAIN is written as MHZQ, how is KITE written in the same code? (a) FUJL (b) DSHJ (c) ETIK (d) JHSD
- 10.If BALL is written as MMBC, how is GOLD written in the same code? (a) HPME (b) EMPH (c) DLOG (d) CKNF
- 11.If MOON is written as NOOM, how is NEST written in the same code? (a) OFTU (b) UTFO (c) TSEN (d) SRDM
- 12.If BOOK is written as DQQM, how is FROG written in the same code? (a) DPME (b) HTQI (c) GSPH (d) IURJ
- 13.If COLD is written as XLOW, how is JUMP written in the same code? (a) PEMJ (b) RGOL (c) KVNQ (d) QFNK
- 14.If PARK is written as MTCR, how is RAIN written in the same code? (a) PKCT (b) NIAR (c) TCKP (d) LGYP
- 15.If DOG is written as WLT, how is MILK written in the same code? (a) MQNO (b) OSPQ (c) NROP (d) NJML
- 16.If FROG is written as GSPH, how is BOOK written in the same code? (a) DQQM (b) CPPL (c) ANNJ (d) LPPC
- 17.If CAT is written as XZG, how is CAKE written in the same code? (a) WYOU (b) YAQW (c) XZPV (d) DBLF
- 18.If PARK is written as KZIP, how is SHIP written in the same code? (a) HSRK (b) GRQJ (c) ITSL (d) TIJQ
- 19.If HAND is written as DNAH, how is SUN written in the same code? (a) OVT (b) MTR (c) NUS (d) TVO
- 20.If SUN is written as OVT, how is CAT written in the same code? (a) DBU (b) SZB (c) TAC (d) UBD
- 21.If PEN is written as RGP, how is KITE written in the same code? (a) LJUF (b) NLWH (c) MKVG (d) IGRC
- 22.If BOOK is written as YLLP, how is MILK written in the same code? (a) MQNO (b) OSPQ (c) NROP (d) NJML
- 23.If LAMP is written as OZNK, how is SUN written in the same code? (a) GEL (b) HFM (c) IGN (d) TVO
- 24.If BELL is written as NNGD, how is DESK written in the same code? (a) MUGF (b) FGUM (c) KSED (d) IQCB
- 25.If DESK is written as LTFE, how is MOON written in the same code? (a) NPPO (b) MNNL (c) NOOM (d) OPPN
- 26.If FROG is written as IQTH, how is COLD written in the same code? (a) BJMA (b) DLOC (c) FNQE (d) EQNF
- 27.If BOOK is written as YLLP, how is RAIN written in the same code? (a) JASN (b) HYQL (c) SBJO (d) IZRM
- 28.If BELL is written as YVOO, how is BOOK written in the same code? (a) CPPL (b) YLLP (c) ZMMQ (d) XKKO
- 29.If DESK is written as MUGF, how is PEN written in the same code? (a) RGP (b) LCN (c) PGR (d) NEP
- 30.If BALL is written as YZOO, how is PARK written in the same code? (a) KZIP (b) LAJQ (c) QBSL (d) JYHO
- 31.If MOON is written as PQQO, how is GOLD written in the same code? (a) DLOG (b) FNQI (c) IQNF (d) BJME
- 32.If GOLD is written as EMPH, how is NEST written in the same code? (a) OFTU (b) UTFO (c) TSEN (d) SRDM
- 33.If BOOK is written as CPPL, how is STAR written in the same code? (a) RSZQ (b) TUBS (c) SBUT (d) UVCT
- 34.If DOG is written as EPH, how is BOOK written in the same code? (a) DQQM (b) CPPL (c) ANNJ (d) LPPC
- 35.If BOOK is written as ANNJ, how is GOLD written in the same code? (a) EMJB (b) HPME (c) FNKC (d) GOLD
- 36.If MOON is written as OQQP, how is BALL written in the same code? (a) EDOO (b) ZYJJ (c) CBMM (d) DCNN
- 37.If FROG is written as IURJ, how is DRUM written in the same code? (a) HVYQ (b) FTWO (c) AORJ (d) GUXP
- 38.If DESK is written as CDRJ, how is KITE written in the same code? (a) JHSD (b) KITE (c) IGRC (d) LJUF
- 39.If NEST is written as MVHG, how is PEN written in the same code? (a) JUL (b) KVM (c) QFO (d) LWN
- 40.If PARK is written as QBSL, how is BELL written in the same code? (a) CFMM (b) ADKK (c) MMFC (d) DGNN
Answer key
- MJPO
- EQNF
- GJTI
- VUGP
- MTR
- TAOB
- KRAP
- WLT
- DSHJ
- EMPH
- TSEN
- HTQI
- QFNK
- PKCT
- NROP
- CPPL
- XZPV
- HSRK
- NUS
- UBD
- MKVG
- NROP
- HFM
- MUGF
- OPPN
- FNQE
- IZRM
- YLLP
- PGR
- KZIP
- FNQI
- UTFO
- TUBS
- CPPL
- FNKC
- DCNN
- GUXP
- JHSD
- KVM
- CFMM
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