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 TOYS is written as GLBH, how is BALL written in the same code? (a) XYNN (b) YZOO (c) CBMM (d) ZAPP
- 2.If BALL is written as LLAB, how is LAMP written in the same code? (a) PMAL (b) MBNQ (c) QNBM (d) OLZK
- 3.If DOG is written as HPE, how is BOOK written in the same code? (a) CPPL (b) KOOB (c) LPPC (d) JNNA
- 4.If FISH is written as JUKH, how is STAR written in the same code? (a) UVCT (b) RATS (c) TCVU (d) PYRQ
- 5.If FROG is written as GSPH, how is KITE written in the same code? (a) JHSD (b) FUJL (c) LJUF (d) MKVG
- 6.If BALL is written as DCNN, how is WIND written in the same code? (a) ZLQG (b) XJOE (c) YKPF (d) UGLB
- 7.If PEN is written as KVM, how is CAT written in the same code? (a) XZG (b) YAH (c) DBU (d) WYF
- 8.If TOYS is written as WRBV, how is LAMP written in the same code? (a) IXJM (b) PEQT (c) ODPS (d) NCOR
- 9.If MOON is written as OQQP, how is DOG written in the same code? (a) EPH (b) GRJ (c) BME (d) FQI
- 10.If PARK is written as KRAP, how is SUN written in the same code? (a) OVT (b) TVO (c) NUS (d) MTR
- 11.If KITE is written as FUJL, how is MOON written in the same code? (a) OPPN (b) NOOM (c) MNNL (d) NPPO
- 12.If STAR is written as HGZI, how is SUN written in the same code? (a) TVO (b) HFM (c) GEL (d) IGN
- 13.If CAT is written as TAC, how is SUN written in the same code? (a) NUS (b) TVO (c) OVT (d) MTR
- 14.If BOAT is written as YLZG, how is GOLD written in the same code? (a) UMPX (b) SKNV (c) HPME (d) TLOW
- 15.If RAIN is written as IZRM, how is KITE written in the same code? (a) PRGV (b) LJUF (c) OQFU (d) QSHW
- 16.If TREE is written as EERT, how is PARK written in the same code? (a) QBSL (b) KRAP (c) LSBQ (d) JQZO
- 17.If BALL is written as MMBC, how is LAMP written in the same code? (a) QNBM (b) PMAL (c) MBNQ (d) OLZK
- 18.If BOAT is written as TAOB, how is COLD written in the same code? (a) EMPD (b) DPME (c) DLOC (d) CKNB
- 19.If CAKE is written as ECMG, how is DESK written in the same code? (a) GHVN (b) BCQI (c) EFTL (d) FGUM
- 20.If FROG is written as EQNF, how is JUMP written in the same code? (a) JUMP (b) HSKN (c) KVNQ (d) ITLO
- 21.If DESK is written as JRDC, how is MILK written in the same code? (a) LMJN (b) JKHL (c) KLIM (d) LHKJ
- 22.If FROG is written as GORF, how is MOON written in the same code? (a) MNNL (b) NOOM (c) OPPN (d) NPPO
- 23.If KITE is written as FUJL, how is MILK written in the same code? (a) NJML (b) JKHL (c) LMJN (d) KLIM
- 24.If DESK is written as WVHP, how is CAT written in the same code? (a) WYF (b) XZG (c) YAH (d) DBU
- 25.If TOYS is written as GLBH, how is BOOK written in the same code? (a) XKKO (b) CPPL (c) YLLP (d) ZMMQ
- 26.If MOON is written as NPPO, how is PARK written in the same code? (a) OZQJ (b) QBSL (c) LSBQ (d) RCTM
- 27.If FROG is written as UILT, how is DOG written in the same code? (a) EPH (b) VKS (c) WLT (d) XMU
- 28.If FISH is written as GJTI, how is BOAT written in the same code? (a) ANZS (b) UBPC (c) CPBU (d) DQCV
- 29.If PARK is written as QBSL, how is PEN written in the same code? (a) QFO (b) RGP (c) OFQ (d) ODM
- 30.If GOLD is written as TLOW, how is TREE written in the same code? (a) USFF (b) FHUU (c) GIVV (d) HJWW
- 31.If MOON is written as MNNL, how is SHIP written in the same code? (a) QJIT (b) PIHS (c) OHGR (d) RGHO
- 32.If JUMP is written as QFNK, how is GOLD written in the same code? (a) TLOW (b) UMPX (c) SKNV (d) HPME
- 33.If FISH is written as GJTI, how is TOYS written in the same code? (a) TZPU (b) UPZT (c) VQAU (d) SNXR
- 34.If KITE is written as PRGV, how is MILK written in the same code? (a) NJML (b) MQNO (c) OSPQ (d) NROP
- 35.If CAKE is written as XZPV, how is TOYS written in the same code? (a) HMCI (b) FKAG (c) UPZT (d) GLBH
- 36.If RAIN is written as TCKP, how is PARK written in the same code? (a) NYPI (b) QBSL (c) RCTM (d) SDUN
- 37.If STAR is written as TCVU, how is COLD written in the same code? (a) BJMA (b) FNQE (c) DLOC (d) EQNF
- 38.If BOOK is written as ANNJ, how is KITE written in the same code? (a) IGRC (b) LJUF (c) KITE (d) JHSD
- 39.If DOG is written as FNC, how is HAND written in the same code? (a) GZMC (b) EOBI (c) DNAH (d) CMZG
- 40.If SUN is written as VXQ, how is LION written in the same code? (a) NKQP (b) IFLK (c) OLRQ (d) PMSR
Answer key
- YZOO
- PMAL
- LPPC
- TCVU
- LJUF
- YKPF
- XZG
- ODPS
- FQI
- NUS
- OPPN
- HFM
- NUS
- TLOW
- PRGV
- KRAP
- QNBM
- DLOC
- FGUM
- ITLO
- JKHL
- NOOM
- LMJN
- XZG
- YLLP
- QBSL
- WLT
- CPBU
- QFO
- GIVV
- OHGR
- TLOW
- UPZT
- NROP
- GLBH
- RCTM
- FNQE
- JHSD
- CMZG
- OLRQ
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