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 LAMP written in the same code? (a) PAOL (b) MBNQ (c) NYMJ (d) OZNK
- 2.If BALL is written as LLAB, how is BOAT written in the same code? (a) SZNA (b) CPBU (c) UBPC (d) TAOB
- 3.If BELL is written as YVOO, how is MOON written in the same code? (a) NPPO (b) NLLM (c) OMMN (d) MKKL
- 4.If BOAT is written as UBPC, how is PARK written in the same code? (a) KRAP (b) QBSL (c) JQZO (d) LSBQ
- 5.If SUN is written as MTR, how is LION written in the same code? (a) OPJM (b) NOIL (c) MNHK (d) KHNM
- 6.If CAT is written as TAC, how is DRUM written in the same code? (a) NVSE (b) MURD (c) LTQC (d) ESVN
- 7.If MOON is written as NOOM, how is PEN written in the same code? (a) OFQ (b) QFO (c) NEP (d) MDO
- 8.If SHIP is written as PIHS, how is NEST written in the same code? (a) OFTU (b) SRDM (c) UTFO (d) TSEN
- 9.If MILK is written as KLIM, how is DOG written in the same code? (a) EPH (b) FNC (c) HPE (d) GOD
- 10.If NEST is written as MVHG, how is BELL written in the same code? (a) ZWPP (b) XUNN (c) YVOO (d) CFMM
- 11.If LAMP is written as ODPS, how is COLD written in the same code? (a) GSPH (b) ZLIA (c) FROG (d) EQNF
- 12.If FISH is written as HKUJ, how is LION written in the same code? (a) JGML (b) NKQP (c) MJPO (d) OLRQ
- 13.If SUN is written as MTR, how is BOOK written in the same code? (a) LPPC (b) JNNA (c) KOOB (d) ANNJ
- 14.If KITE is written as PRGV, how is RAIN written in the same code? (a) SBJO (b) JASN (c) HYQL (d) IZRM
- 15.If BOOK is written as LPPC, how is PARK written in the same code? (a) KRAP (b) QBSL (c) LSBQ (d) JQZO
- 16.If RAIN is written as NIAR, how is BOOK written in the same code? (a) LPPC (b) JNNA (c) CPPL (d) KOOB
- 17.If HAND is written as DNAH, how is GOLD written in the same code? (a) HPME (b) EMPH (c) DLOG (d) CKNF
- 18.If TOYS is written as GLBH, how is PEN written in the same code? (a) QFO (b) JUL (c) LWN (d) KVM
- 19.If NEST is written as QHVW, how is SHIP written in the same code? (a) VKLS (b) WLMT (c) PEFM (d) UJKR
- 20.If SHIP is written as TIJQ, how is LAMP written in the same code? (a) NCOR (b) KZLO (c) MBNQ (d) QNBM
- 21.If HAND is written as CMZG, how is KITE written in the same code? (a) JHSD (b) ETIK (c) FUJL (d) DSHJ
- 22.If PARK is written as RCTM, how is BELL written in the same code? (a) DGNN (b) EHOO (c) CFMM (d) ZCJJ
- 23.If DRUM is written as WIFN, how is MILK written in the same code? (a) NROP (b) MQNO (c) NJML (d) OSPQ
- 24.If FROG is written as UILT, how is PARK written in the same code? (a) QBSL (b) KZIP (c) LAJQ (d) JYHO
- 25.If CAT is written as VCE, how is MILK written in the same code? (a) IJGK (b) MNKO (c) OKNM (d) KLIM
- 26.If GOLD is written as DLOG, how is JUMP written in the same code? (a) KVNQ (b) QNVK (c) PMUJ (d) OLTI
- 27.If DESK is written as MUGF, how is SHIP written in the same code? (a) RKJU (b) UJKR (c) NGFQ (d) PIHS
- 28.If BALL is written as AZKK, how is LION written in the same code? (a) KHNM (b) JGML (c) LION (d) MJPO
- 29.If LAMP is written as OZNK, how is FISH written in the same code? (a) GJTI (b) VSIT (c) TQGR (d) URHS
- 30.If KITE is written as DSHJ, how is BELL written in the same code? (a) ADKK (b) LLEB (c) MMFC (d) KKDA
- 31.If KITE is written as IGRC, how is LAMP written in the same code? (a) JYKN (b) NCOR (c) IXJM (d) KZLO
- 32.If BELL is written as YVOO, how is MILK written in the same code? (a) OSPQ (b) MQNO (c) NROP (d) NJML
- 33.If STAR is written as UVCT, how is FROG written in the same code? (a) HTQI (b) DPME (c) IURJ (d) GSPH
- 34.If KITE is written as GVKM, how is CAKE written in the same code? (a) EKAC (b) ECMG (c) CIYA (d) GMCE
- 35.If FISH is written as URHS, how is BELL written in the same code? (a) XUNN (b) YVOO (c) CFMM (d) ZWPP
- 36.If LAMP is written as PMAL, how is DESK written in the same code? (a) LTFE (b) EFTL (c) KSED (d) JRDC
- 37.If BALL is written as NNCD, how is MOON written in the same code? (a) PQQO (b) NOOM (c) OQQP (d) LMMK
- 38.If DRUM is written as WIFN, how is DOG written in the same code? (a) XMU (b) EPH (c) VKS (d) WLT
- 39.If DOG is written as FNC, how is GOLD written in the same code? (a) EMPH (b) DLOG (c) FNKC (d) CKNF
- 40.If FISH is written as URHS, how is PARK written in the same code? (a) QBSL (b) KZIP (c) JYHO (d) LAJQ
Answer key
- OZNK
- TAOB
- NLLM
- LSBQ
- MNHK
- MURD
- NEP
- TSEN
- GOD
- YVOO
- FROG
- NKQP
- JNNA
- IZRM
- LSBQ
- KOOB
- DLOG
- KVM
- VKLS
- MBNQ
- DSHJ
- DGNN
- NROP
- KZIP
- MNKO
- PMUJ
- RKJU
- KHNM
- URHS
- KKDA
- JYKN
- NROP
- HTQI
- GMCE
- YVOO
- KSED
- PQQO
- WLT
- CKNF
- KZIP
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