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 TREE is written as SQDD, how is TOYS written in the same code? (a) UPZT (b) RMWQ (c) TOYS (d) SNXR
- 2.If MOON is written as NLLM, how is SUN written in the same code? (a) HFM (b) IGN (c) TVO (d) GEL
- 3.If PARK is written as MTCR, how is JUMP written in the same code? (a) NKSH (b) ROWL (c) PMUJ (d) LWOR
- 4.If MILK is written as KGJI, how is RAIN written in the same code? (a) PYGL (b) OXFK (c) TCKP (d) QZHM
- 5.If TREE is written as GGTV, how is MOON written in the same code? (a) OQQP (b) NOOM (c) LMMK (d) PQQO
- 6.If GOLD is written as FNQI, how is STAR written in the same code? (a) PYRQ (b) UVCT (c) TCVU (d) RATS
- 7.If LION is written as MJPO, how is FROG written in the same code? (a) HPSG (b) GSPH (c) EQNF (d) HTQI
- 8.If NEST is written as VUGP, how is COLD written in the same code? (a) EQNF (b) BJMA (c) DLOC (d) FNQE
- 9.If NEST is written as MVHG, how is PARK written in the same code? (a) LAJQ (b) QBSL (c) JYHO (d) KZIP
- 10.If CAKE is written as DJZB, how is PARK written in the same code? (a) JQZO (b) OZQJ (c) KRAP (d) LSBQ
- 11.If STAR is written as TUBS, how is TOYS written in the same code? (a) TZPU (b) VQAU (c) SNXR (d) UPZT
- 12.If WIND is written as DRMW, how is CAT written in the same code? (a) WYF (b) XZG (c) YAH (d) DBU
- 13.If HAND is written as EOBI, how is CAKE written in the same code? (a) EKAC (b) FLBD (c) DJZB (d) DBLF
- 14.If TREE is written as EERT, how is DESK written in the same code? (a) JRDC (b) KSED (c) EFTL (d) LTFE
- 15.If MOON is written as NPPO, how is BELL written in the same code? (a) ADKK (b) DGNN (c) CFMM (d) MMFC
- 16.If COLD is written as XLOW, how is KITE written in the same code? (a) PRGV (b) QSHW (c) LJUF (d) OQFU
- 17.If FISH is written as EHRG, how is PARK written in the same code? (a) OZQJ (b) QBSL (c) PARK (d) NYPI
- 18.If TOYS is written as GLBH, how is CAKE written in the same code? (a) XZPV (b) DBLF (c) YAQW (d) WYOU
- 19.If RAIN is written as QZHM, how is BOOK written in the same code? (a) BOOK (b) ZMMI (c) CPPL (d) ANNJ
- 20.If LAMP is written as PMAL, how is SHIP written in the same code? (a) OHGR (b) PIHS (c) QJIT (d) TIJQ
- 21.If LAMP is written as KZLO, how is MILK written in the same code? (a) LHKJ (b) KGJI (c) MILK (d) NJML
- 22.If RAIN is written as TCKP, how is TOYS written in the same code? (a) WRBV (b) RMWQ (c) UPZT (d) VQAU
- 23.If TREE is written as GGTV, how is NEST written in the same code? (a) VUGP (b) RQCL (c) TSEN (d) PGUV
- 24.If SHIP is written as RKJU, how is BOAT written in the same code? (a) RYMZ (b) VCQD (c) DQCV (d) TAOB
- 25.If KITE is written as ETIK, how is PEN written in the same code? (a) MDO (b) NEP (c) QFO (d) OFQ
- 26.If JUMP is written as QFNK, how is HAND written in the same code? (a) RYLV (b) IBOE (c) SZMW (d) TANX
- 27.If NEST is written as UTFO, how is KITE written in the same code? (a) LJUF (b) ETIK (c) DSHJ (d) FUJL
- 28.If CAT is written as TAC, how is DRUM written in the same code? (a) ESVN (b) LTQC (c) MURD (d) NVSE
- 29.If PEN is written as SHQ, how is LION written in the same code? (a) PMSR (b) NKQP (c) OLRQ (d) IFLK
- 30.If TREE is written as EERT, how is HAND written in the same code? (a) DNAH (b) EOBI (c) CMZG (d) IBOE
- 31.If BOAT is written as YLZG, how is CAT written in the same code? (a) YAH (b) WYF (c) XZG (d) DBU
- 32.If GOLD is written as IQNF, how is RAIN written in the same code? (a) PYGL (b) SBJO (c) TCKP (d) UDLQ
- 33.If PARK is written as MTCR, how is COLD written in the same code? (a) FNQE (b) BJMA (c) DLOC (d) EQNF
- 34.If FROG is written as UILT, how is LION written in the same code? (a) NQKL (b) ORLM (c) PSMN (d) MJPO
- 35.If BALL is written as YZOO, how is JUMP written in the same code? (a) PEMJ (b) KVNQ (c) RGOL (d) QFNK
- 36.If STAR is written as QRYP, how is KITE written in the same code? (a) JHSD (b) MKVG (c) IGRC (d) HFQB
- 37.If RAIN is written as PKCT, how is MOON written in the same code? (a) NOOM (b) OQQP (c) PQQO (d) LMMK
- 38.If PEN is written as NEP, how is DRUM written in the same code? (a) LTQC (b) ESVN (c) MURD (d) NVSE
- 39.If BALL is written as KKZA, how is LAMP written in the same code? (a) PMAL (b) QNBM (c) OLZK (d) KZLO
- 40.If FISH is written as URHS, how is LION written in the same code? (a) PSMN (b) MJPO (c) ORLM (d) NQKL
Answer key
- SNXR
- HFM
- ROWL
- PYGL
- PQQO
- TCVU
- GSPH
- FNQE
- KZIP
- JQZO
- UPZT
- XZG
- FLBD
- KSED
- CFMM
- PRGV
- OZQJ
- XZPV
- ANNJ
- PIHS
- LHKJ
- VQAU
- VUGP
- VCQD
- NEP
- SZMW
- FUJL
- MURD
- OLRQ
- DNAH
- XZG
- TCKP
- FNQE
- ORLM
- QFNK
- IGRC
- PQQO
- MURD
- OLZK
- ORLM
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