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 SUN is written as HFM, how is BOOK written in the same code? (a) XKKO (b) YLLP (c) ZMMQ (d) CPPL
- 2.If TREE is written as FFSU, how is DESK written in the same code? (a) LTFE (b) EFTL (c) JRDC (d) KSED
- 3.If NEST is written as MVHG, how is TREE written in the same code? (a) GIVV (b) HJWW (c) FHUU (d) USFF
- 4.If RAIN is written as TCKP, how is COLD written in the same code? (a) DPME (b) AMJB (c) EQNF (d) FROG
- 5.If DOG is written as GOD, how is KITE written in the same code? (a) ETIK (b) LJUF (c) DSHJ (d) FUJL
- 6.If COLD is written as EQNF, how is DESK written in the same code? (a) BCQI (b) FGUM (c) EFTL (d) GHVN
- 7.If JUMP is written as QNVK, how is MILK written in the same code? (a) KLIM (b) JKHL (c) NJML (d) LMJN
- 8.If HAND is written as SZMW, how is PARK written in the same code? (a) QBSL (b) LAJQ (c) KZIP (d) JYHO
- 9.If DRUM is written as WIFN, how is BOAT written in the same code? (a) ZMAH (b) YLZG (c) CPBU (d) XKYF
- 10.If LAMP is written as MBNQ, how is MOON written in the same code? (a) OPPN (b) LNNM (c) OQQP (d) NPPO
- 11.If HAND is written as DNAH, how is COLD written in the same code? (a) EMPD (b) CKNB (c) DPME (d) DLOC
- 12.If MOON is written as NLLM, how is NEST written in the same code? (a) LUGF (b) OFTU (c) NWIH (d) MVHG
- 13.If TOYS is written as GLBH, how is SHIP written in the same code? (a) ITSL (b) GRQJ (c) TIJQ (d) HSRK
- 14.If SUN is written as NUS, how is STAR written in the same code? (a) QZSR (b) TUBS (c) SBUT (d) RATS
- 15.If BOOK is written as KOOB, how is PEN written in the same code? (a) NEP (b) OFQ (c) QFO (d) MDO
- 16.If BELL is written as MMFC, how is RAIN written in the same code? (a) OJBS (b) MHZQ (c) SBJO (d) NIAR
- 17.If FISH is written as GJTI, how is DOG written in the same code? (a) EPH (b) CNF (c) HPE (d) FQI
- 18.If TREE is written as EERT, how is DOG written in the same code? (a) FNC (b) HPE (c) EPH (d) GOD
- 19.If GOLD is written as TLOW, how is LAMP written in the same code? (a) MBNQ (b) NYMJ (c) OZNK (d) PAOL
- 20.If SHIP is written as VKLS, how is BOOK written in the same code? (a) DQQM (b) YLLH (c) ERRN (d) FSSO
- 21.If PARK is written as KZIP, how is BOOK written in the same code? (a) CPPL (b) YLLP (c) ZMMQ (d) XKKO
- 22.If NEST is written as SRDM, how is LAMP written in the same code? (a) KZLO (b) QNBM (c) OLZK (d) PMAL
- 23.If KITE is written as IGRC, how is DESK written in the same code? (a) CDRJ (b) BCQI (c) ABPH (d) FGUM
- 24.If DRUM is written as MURD, how is TREE written in the same code? (a) DDQS (b) EERT (c) USFF (d) FFSU
- 25.If FISH is written as URHS, how is PEN written in the same code? (a) LWN (b) JUL (c) KVM (d) QFO
- 26.If TOYS is written as GLBH, how is CAT written in the same code? (a) XZG (b) DBU (c) YAH (d) WYF
- 27.If RAIN is written as OJBS, how is DOG written in the same code? (a) EPH (b) FNC (c) HPE (d) GOD
- 28.If JUMP is written as QFNK, how is RAIN written in the same code? (a) SBJO (b) IZRM (c) JASN (d) HYQL
- 29.If CAKE is written as FLBD, how is MOON written in the same code? (a) NOOM (b) MNNL (c) OPPN (d) NPPO
- 30.If SUN is written as VXQ, how is MILK written in the same code? (a) OKNM (b) JFIH (c) QMPO (d) PLON
- 31.If CAKE is written as EKAC, how is KITE written in the same code? (a) DSHJ (b) FUJL (c) LJUF (d) ETIK
- 32.If GOLD is written as DLOG, how is WIND written in the same code? (a) DNIW (b) XJOE (c) CMHV (d) EOJX
- 33.If PEN is written as ODM, how is LION written in the same code? (a) KHNM (b) MJPO (c) JGML (d) LION
- 34.If TREE is written as GIVV, how is BOOK written in the same code? (a) XKKO (b) YLLP (c) ZMMQ (d) CPPL
- 35.If WIND is written as EOJX, how is PEN written in the same code? (a) NEP (b) QFO (c) MDO (d) OFQ
- 36.If HAND is written as EOBI, how is CAKE written in the same code? (a) DBLF (b) DJZB (c) EKAC (d) FLBD
- 37.If TREE is written as EERT, how is MOON written in the same code? (a) NPPO (b) OPPN (c) MNNL (d) NOOM
- 38.If TREE is written as GIVV, how is BELL written in the same code? (a) CFMM (b) ZWPP (c) XUNN (d) YVOO
- 39.If PEN is written as KVM, how is STAR written in the same code? (a) HGZI (b) IHAJ (c) TUBS (d) GFYH
- 40.If STAR is written as HGZI, how is KITE written in the same code? (a) PRGV (b) QSHW (c) LJUF (d) OQFU
Answer key
- YLLP
- LTFE
- GIVV
- EQNF
- ETIK
- FGUM
- LMJN
- KZIP
- YLZG
- NPPO
- DLOC
- MVHG
- HSRK
- RATS
- NEP
- OJBS
- EPH
- GOD
- OZNK
- ERRN
- YLLP
- OLZK
- BCQI
- EERT
- KVM
- XZG
- HPE
- IZRM
- OPPN
- PLON
- ETIK
- DNIW
- KHNM
- YLLP
- OFQ
- FLBD
- NOOM
- YVOO
- HGZI
- PRGV
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