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 BOOK is written as JNNA, how is MOON written in the same code? (a) OPPN (b) MNNL (c) NOOM (d) LNNM
- 2.If BOAT is written as UBPC, how is BOOK written in the same code? (a) JNNA (b) KOOB (c) LPPC (d) CPPL
- 3.If MILK is written as NROP, how is DESK written in the same code? (a) XWIQ (b) WVHP (c) VUGO (d) EFTL
- 4.If TOYS is written as GLBH, how is MOON written in the same code? (a) NLLM (b) NPPO (c) MKKL (d) OMMN
- 5.If NEST is written as MVHG, how is JUMP written in the same code? (a) KVNQ (b) RGOL (c) QFNK (d) PEMJ
- 6.If KITE is written as PRGV, how is CAT written in the same code? (a) DBU (b) YAH (c) XZG (d) WYF
- 7.If TOYS is written as UAQV, how is DESK written in the same code? (a) FGUM (b) IQCB (c) MUGF (d) KSED
- 8.If FISH is written as HSIF, how is PEN written in the same code? (a) NEP (b) QFO (c) MDO (d) OFQ
- 9.If FISH is written as JUKH, how is STAR written in the same code? (a) UVCT (b) RATS (c) PYRQ (d) TCVU
- 10.If SHIP is written as HSRK, how is MILK written in the same code? (a) NJML (b) MQNO (c) NROP (d) OSPQ
- 11.If TREE is written as EERT, how is PARK written in the same code? (a) LSBQ (b) KRAP (c) QBSL (d) JQZO
- 12.If DOG is written as EPH, how is CAT written in the same code? (a) DBU (b) BZS (c) ECV (d) UBD
- 13.If LAMP is written as OZNK, how is LION written in the same code? (a) PSMN (b) ORLM (c) NQKL (d) MJPO
- 14.If CAT is written as XZG, how is BALL written in the same code? (a) ZAPP (b) YZOO (c) XYNN (d) CBMM
- 15.If TOYS is written as RMWQ, how is TREE written in the same code? (a) SQDD (b) QOBB (c) RPCC (d) VTGG
- 16.If DESK is written as FGUM, how is KITE written in the same code? (a) IGRC (b) MKVG (c) LJUF (d) NLWH
- 17.If BOOK is written as YLLP, how is MILK written in the same code? (a) NROP (b) OSPQ (c) NJML (d) MQNO
- 18.If GOLD is written as DLOG, how is SHIP written in the same code? (a) QJIT (b) OHGR (c) PIHS (d) TIJQ
- 19.If MILK is written as NROP, how is RAIN written in the same code? (a) IZRM (b) SBJO (c) HYQL (d) JASN
- 20.If PEN is written as PGR, how is TOYS written in the same code? (a) SYOT (b) QWMR (c) VQAU (d) UAQV
- 21.If HAND is written as GZMC, how is DRUM written in the same code? (a) BPSK (b) ESVN (c) CQTL (d) DRUM
- 22.If BOOK is written as KOOB, how is KITE written in the same code? (a) LJUF (b) DSHJ (c) ETIK (d) FUJL
- 23.If BOAT is written as TAOB, how is HAND written in the same code? (a) CMZG (b) EOBI (c) DNAH (d) IBOE
- 24.If MOON is written as NLLM, how is DESK written in the same code? (a) WVHP (b) XWIQ (c) EFTL (d) VUGO
- 25.If LAMP is written as PMAL, how is JUMP written in the same code? (a) QNVK (b) OLTI (c) PMUJ (d) KVNQ
- 26.If PEN is written as NEP, how is CAT written in the same code? (a) DBU (b) SZB (c) UBD (d) TAC
- 27.If LAMP is written as OLZK, how is BOAT written in the same code? (a) SZNA (b) ANZS (c) UBPC (d) TAOB
- 28.If STAR is written as TUBS, how is RAIN written in the same code? (a) SBJO (b) OJBS (c) TCKP (d) QZHM
- 29.If STAR is written as RSZQ, how is DESK written in the same code? (a) DESK (b) EFTL (c) BCQI (d) CDRJ
- 30.If BELL is written as YVOO, how is FISH written in the same code? (a) URHS (b) GJTI (c) TQGR (d) VSIT
- 31.If HAND is written as DNAH, how is PEN written in the same code? (a) OFQ (b) MDO (c) NEP (d) QFO
- 32.If MOON is written as MNNL, how is HAND written in the same code? (a) EOBI (b) DNAH (c) CMZG (d) GZMC
- 33.If DESK is written as MUGF, how is BALL written in the same code? (a) LLAB (b) NNCD (c) DCNN (d) JJYZ
- 34.If BOOK is written as DQQM, how is NEST written in the same code? (a) OFTU (b) LCQR (c) QHVW (d) PGUV
- 35.If LION is written as MJPO, how is TREE written in the same code? (a) SQDD (b) VTGG (c) FFSU (d) USFF
- 36.If LAMP is written as QNBM, how is FROG written in the same code? (a) FNQE (b) GSPH (c) HPSG (d) GORF
- 37.If TREE is written as GGTV, how is SHIP written in the same code? (a) NGFQ (b) PIHS (c) RKJU (d) UJKR
- 38.If SUN is written as HFM, how is CAT written in the same code? (a) DBU (b) WYF (c) XZG (d) YAH
- 39.If SUN is written as VXQ, how is LION written in the same code? (a) PMSR (b) OLRQ (c) NKQP (d) IFLK
- 40.If COLD is written as AMJB, how is RAIN written in the same code? (a) QZHM (b) PYGL (c) OXFK (d) TCKP
Answer key
- MNNL
- LPPC
- WVHP
- NLLM
- QFNK
- XZG
- MUGF
- NEP
- TCVU
- NROP
- KRAP
- DBU
- ORLM
- YZOO
- RPCC
- MKVG
- NROP
- PIHS
- IZRM
- UAQV
- CQTL
- ETIK
- DNAH
- WVHP
- PMUJ
- TAC
- SZNA
- SBJO
- CDRJ
- URHS
- NEP
- CMZG
- NNCD
- PGUV
- USFF
- HPSG
- RKJU
- XZG
- OLRQ
- PYGL
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