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 DOG written in the same code? (a) HPE (b) FNC (c) GOD (d) EPH
- 2.If TREE is written as VTGG, how is CAT written in the same code? (a) ECV (b) DBU (c) AYR (d) FDW
- 3.If SHIP is written as RKJU, how is DRUM written in the same code? (a) KSPB (b) MURD (c) FTWO (d) OWTF
- 4.If TOYS is written as RMWQ, how is DRUM written in the same code? (a) BPSK (b) AORJ (c) FTWO (d) CQTL
- 5.If FISH is written as GJTI, how is WIND written in the same code? (a) XJOE (b) VHMC (c) EOJX (d) YKPF
- 6.If FROG is written as UILT, how is BOAT written in the same code? (a) YLZG (b) XKYF (c) CPBU (d) ZMAH
- 7.If RAIN is written as IZRM, how is SUN written in the same code? (a) TVO (b) GEL (c) IGN (d) HFM
- 8.If LION is written as ORLM, how is DOG written in the same code? (a) XMU (b) EPH (c) VKS (d) WLT
- 9.If RAIN is written as IZRM, how is CAT written in the same code? (a) DBU (b) WYF (c) XZG (d) YAH
- 10.If WIND is written as DRMW, how is PEN written in the same code? (a) JUL (b) KVM (c) LWN (d) QFO
- 11.If LAMP is written as PMAL, how is DESK written in the same code? (a) KSED (b) JRDC (c) LTFE (d) EFTL
- 12.If KITE is written as ETIK, how is PARK written in the same code? (a) QBSL (b) JQZO (c) KRAP (d) LSBQ
- 13.If GOLD is written as DLOG, how is SUN written in the same code? (a) NUS (b) OVT (c) TVO (d) MTR
- 14.If KITE is written as LJUF, how is SUN written in the same code? (a) RTM (b) UWP (c) OVT (d) TVO
- 15.If WIND is written as VHMC, how is DRUM written in the same code? (a) DRUM (b) BPSK (c) CQTL (d) ESVN
- 16.If BELL is written as YVOO, how is TOYS written in the same code? (a) UPZT (b) GLBH (c) HMCI (d) FKAG
- 17.If WIND is written as DNIW, how is DOG written in the same code? (a) HPE (b) FNC (c) GOD (d) EPH
- 18.If HAND is written as SZMW, how is STAR written in the same code? (a) GFYH (b) IHAJ (c) TUBS (d) HGZI
- 19.If DOG is written as EPH, how is GOLD written in the same code? (a) IQNF (b) FNKC (c) EMPH (d) HPME
- 20.If DOG is written as EPH, how is BOAT written in the same code? (a) CPBU (b) DQCV (c) UBPC (d) ANZS
- 21.If KITE is written as MKVG, how is LAMP written in the same code? (a) MBNQ (b) ODPS (c) JYKN (d) NCOR
- 22.If SHIP is written as PIHS, how is CAT written in the same code? (a) DBU (b) SZB (c) TAC (d) UBD
- 23.If MILK is written as NROP, how is BOAT written in the same code? (a) ZMAH (b) XKYF (c) YLZG (d) CPBU
- 24.If TREE is written as USFF, how is FISH written in the same code? (a) GJTI (b) HKUJ (c) ITJG (d) EHRG
- 25.If PARK is written as KRAP, how is RAIN written in the same code? (a) NIAR (b) OJBS (c) MHZQ (d) SBJO
- 26.If DRUM is written as WIFN, how is COLD written in the same code? (a) DPME (b) WKNV (c) XLOW (d) YMPX
- 27.If JUMP is written as PMUJ, how is BALL written in the same code? (a) MMBC (b) CBMM (c) LLAB (d) KKZA
- 28.If NEST is written as VUGP, how is MOON written in the same code? (a) LMMK (b) NOOM (c) PQQO (d) OQQP
- 29.If DOG is written as HPE, how is KITE written in the same code? (a) FUJL (b) ETIK (c) DSHJ (d) LJUF
- 30.If TOYS is written as UAQV, how is JUMP written in the same code? (a) NKSH (b) PMUJ (c) LWOR (d) ROWL
- 31.If CAKE is written as EKAC, how is BOAT written in the same code? (a) CPBU (b) TAOB (c) UBPC (d) SZNA
- 32.If PARK is written as QBSL, how is FISH written in the same code? (a) EHRG (b) HKUJ (c) ITJG (d) GJTI
- 33.If STAR is written as HGZI, how is FISH written in the same code? (a) URHS (b) GJTI (c) TQGR (d) VSIT
- 34.If FISH is written as HSIF, how is BALL written in the same code? (a) MMBC (b) LLAB (c) KKZA (d) CBMM
- 35.If KITE is written as IGRC, how is CAKE written in the same code? (a) ECMG (b) BZJD (c) AYIC (d) ZXHB
- 36.If STAR is written as VWDU, how is FISH written in the same code? (a) JMWL (b) HKUJ (c) ILVK (d) CFPE
- 37.If LION is written as MJPO, how is FISH written in the same code? (a) HKUJ (b) EHRG (c) GJTI (d) ITJG
- 38.If BELL is written as DGNN, how is NEST written in the same code? (a) QHVW (b) LCQR (c) PGUV (d) OFTU
- 39.If SUN is written as UWP, how is TREE written in the same code? (a) WUHH (b) RPCC (c) USFF (d) VTGG
- 40.If KITE is written as ETIK, how is BOAT written in the same code? (a) CPBU (b) UBPC (c) SZNA (d) TAOB
Answer key
- GOD
- ECV
- OWTF
- BPSK
- XJOE
- YLZG
- HFM
- WLT
- XZG
- KVM
- KSED
- KRAP
- NUS
- TVO
- CQTL
- GLBH
- GOD
- HGZI
- HPME
- CPBU
- NCOR
- TAC
- YLZG
- GJTI
- NIAR
- XLOW
- LLAB
- PQQO
- FUJL
- ROWL
- TAOB
- GJTI
- URHS
- LLAB
- AYIC
- ILVK
- GJTI
- PGUV
- VTGG
- TAOB
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