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 MOON is written as OPPN, how is KITE written in the same code? (a) ETIK (b) LJUF (c) DSHJ (d) FUJL
- 2.If MOON is written as NOOM, how is DOG written in the same code? (a) FNC (b) EPH (c) GOD (d) HPE
- 3.If DRUM is written as CQTL, how is KITE written in the same code? (a) LJUF (b) IGRC (c) KITE (d) JHSD
- 4.If GOLD is written as JROG, how is PEN written in the same code? (a) TIR (b) RGP (c) SHQ (d) MBK
- 5.If DESK is written as JRDC, how is DRUM written in the same code? (a) NVSE (b) LTQC (c) MURD (d) CQTL
- 6.If PEN is written as KVM, how is JUMP written in the same code? (a) RGOL (b) QFNK (c) KVNQ (d) PEMJ
- 7.If BOOK is written as ZMMI, how is BOAT written in the same code? (a) ANZS (b) YLXQ (c) ZMYR (d) DQCV
- 8.If BOOK is written as KOOB, how is LION written in the same code? (a) OPJM (b) NOIL (c) MJPO (d) MNHK
- 9.If SUN is written as HFM, how is COLD written in the same code? (a) XLOW (b) YMPX (c) WKNV (d) DPME
- 10.If PEN is written as MDO, how is CAKE written in the same code? (a) FLBD (b) DJZB (c) EKAC (d) BZJD
- 11.If MILK is written as OKNM, how is COLD written in the same code? (a) FROG (b) DPME (c) AMJB (d) EQNF
- 12.If PARK is written as KRAP, how is HAND written in the same code? (a) CMZG (b) IBOE (c) EOBI (d) DNAH
- 13.If NEST is written as VUGP, how is CAT written in the same code? (a) ECV (b) TAC (c) RYA (d) VCE
- 14.If DESK is written as JRDC, how is GOLD written in the same code? (a) DLOG (b) FNKC (c) EMPH (d) CKNF
- 15.If BOOK is written as ANNJ, how is PEN written in the same code? (a) PEN (b) QFO (c) NCL (d) ODM
- 16.If PARK is written as KRAP, how is PEN written in the same code? (a) MDO (b) QFO (c) NEP (d) OFQ
- 17.If TREE is written as EERT, how is LAMP written in the same code? (a) MBNQ (b) PMAL (c) QNBM (d) OLZK
- 18.If DESK is written as WVHP, how is LION written in the same code? (a) MJPO (b) NQKL (c) ORLM (d) PSMN
- 19.If JUMP is written as QFNK, how is NEST written in the same code? (a) LUGF (b) OFTU (c) MVHG (d) NWIH
- 20.If PARK is written as JQZO, how is DRUM written in the same code? (a) MURD (b) NVSE (c) LTQC (d) CQTL
- 21.If HAND is written as DNAH, how is MOON written in the same code? (a) NPPO (b) OPPN (c) MNNL (d) NOOM
- 22.If GOLD is written as DLOG, how is JUMP written in the same code? (a) QNVK (b) KVNQ (c) PMUJ (d) OLTI
- 23.If SHIP is written as TIJQ, how is TOYS written in the same code? (a) SNXR (b) UPZT (c) TZPU (d) VQAU
- 24.If PARK is written as KRAP, how is DESK written in the same code? (a) JRDC (b) EFTL (c) LTFE (d) KSED
- 25.If FISH is written as HKUJ, how is MILK written in the same code? (a) KGJI (b) PLON (c) NJML (d) OKNM
- 26.If BALL is written as KKZA, how is GOLD written in the same code? (a) EMPH (b) DLOG (c) FNKC (d) CKNF
- 27.If PEN is written as KVM, how is WIND written in the same code? (a) DRMW (b) ESNX (c) XJOE (d) CQLV
- 28.If RAIN is written as NIAR, how is DESK written in the same code? (a) EFTL (b) LTFE (c) JRDC (d) KSED
- 29.If BELL is written as LLEB, how is PEN written in the same code? (a) OFQ (b) MDO (c) NEP (d) QFO
- 30.If TREE is written as FFSU, how is PEN written in the same code? (a) QFO (b) OFQ (c) MDO (d) NEP
- 31.If LION is written as NOIL, how is NEST written in the same code? (a) UTFO (b) TSEN (c) OFTU (d) SRDM
- 32.If BALL is written as MMBC, how is BOOK written in the same code? (a) CPPL (b) LPPC (c) JNNA (d) KOOB
- 33.If RAIN is written as TCKP, how is LION written in the same code? (a) MJPO (b) OLRQ (c) JGML (d) NKQP
- 34.If LAMP is written as OZNK, how is CAKE written in the same code? (a) WYOU (b) DBLF (c) YAQW (d) XZPV
- 35.If DOG is written as WLT, how is FROG written in the same code? (a) THKS (b) VJMU (c) GSPH (d) UILT
- 36.If FISH is written as GRHE, how is BOAT written in the same code? (a) ANZS (b) UBPC (c) SZNA (d) TAOB
- 37.If RAIN is written as MHZQ, how is FISH written in the same code? (a) ITJG (b) EHRG (c) GRHE (d) HSIF
- 38.If DOG is written as FQI, how is FROG written in the same code? (a) GSPH (b) DPME (c) HTQI (d) IURJ
- 39.If FISH is written as HSIF, how is DOG written in the same code? (a) EPH (b) GOD (c) HPE (d) FNC
- 40.If JUMP is written as OLTI, how is SHIP written in the same code? (a) RGHO (b) QJIT (c) PIHS (d) OHGR
Answer key
- FUJL
- GOD
- JHSD
- SHQ
- LTQC
- QFNK
- ZMYR
- NOIL
- XLOW
- DJZB
- EQNF
- DNAH
- VCE
- CKNF
- ODM
- NEP
- PMAL
- ORLM
- MVHG
- LTQC
- NOOM
- PMUJ
- UPZT
- KSED
- OKNM
- CKNF
- DRMW
- KSED
- NEP
- OFQ
- TSEN
- LPPC
- NKQP
- XZPV
- UILT
- SZNA
- GRHE
- HTQI
- GOD
- OHGR
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