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 WIND is written as VHMC, how is DESK written in the same code? (a) DESK (b) BCQI (c) CDRJ (d) EFTL
- 2.If JUMP is written as QFNK, how is FISH written in the same code? (a) GJTI (b) VSIT (c) URHS (d) TQGR
- 3.If PEN is written as OFQ, how is FROG written in the same code? (a) HPSG (b) FNQE (c) GSPH (d) GORF
- 4.If MOON is written as KMML, how is BELL written in the same code? (a) ADKK (b) DGNN (c) ZCJJ (d) YBII
- 5.If BOAT is written as ANZS, how is HAND written in the same code? (a) IBOE (b) GZMC (c) FYLB (d) HAND
- 6.If LAMP is written as PMAL, how is FROG written in the same code? (a) GSPH (b) GORF (c) HPSG (d) FNQE
- 7.If MILK is written as NROP, how is TREE written in the same code? (a) FHUU (b) HJWW (c) USFF (d) GIVV
- 8.If COLD is written as XLOW, how is TREE written in the same code? (a) GIVV (b) USFF (c) FHUU (d) HJWW
- 9.If DESK is written as WVHP, how is RAIN written in the same code? (a) JASN (b) SBJO (c) HYQL (d) IZRM
- 10.If DOG is written as GOD, how is PEN written in the same code? (a) NEP (b) MDO (c) QFO (d) OFQ
- 11.If DOG is written as GOD, how is FISH written in the same code? (a) HSIF (b) GRHE (c) GJTI (d) ITJG
- 12.If LAMP is written as OZNK, how is MILK written in the same code? (a) MQNO (b) NROP (c) NJML (d) OSPQ
- 13.If FROG is written as GSPH, how is JUMP written in the same code? (a) QNVK (b) KVNQ (c) LWOR (d) ITLO
- 14.If LAMP is written as ROCN, how is SHIP written in the same code? (a) RKJU (b) NGFQ (c) UJKR (d) PIHS
- 15.If CAT is written as TAC, how is BALL written in the same code? (a) CBMM (b) KKZA (c) LLAB (d) MMBC
- 16.If HAND is written as DNAH, how is KITE written in the same code? (a) LJUF (b) ETIK (c) FUJL (d) DSHJ
- 17.If DESK is written as GHVN, how is PEN written in the same code? (a) MBK (b) TIR (c) RGP (d) SHQ
- 18.If TOYS is written as SNXR, how is STAR written in the same code? (a) RSZQ (b) QRYP (c) TUBS (d) STAR
- 19.If DESK is written as MUGF, how is BOOK written in the same code? (a) IMMZ (b) DQQM (c) MQQD (d) KOOB
- 20.If BOAT is written as ANZS, how is LION written in the same code? (a) KHNM (b) MJPO (c) JGML (d) LION
- 21.If DESK is written as WVHP, how is LAMP written in the same code? (a) MBNQ (b) NYMJ (c) PAOL (d) OZNK
- 22.If MOON is written as NLLM, how is GOLD written in the same code? (a) HPME (b) SKNV (c) TLOW (d) UMPX
- 23.If LION is written as NOIL, how is GOLD written in the same code? (a) CKNF (b) EMPH (c) DLOG (d) HPME
- 24.If BOOK is written as KOOB, how is HAND written in the same code? (a) DNAH (b) IBOE (c) CMZG (d) EOBI
- 25.If BOAT is written as UBPC, how is DOG written in the same code? (a) HPE (b) GOD (c) EPH (d) FNC
- 26.If STAR is written as HGZI, how is PARK written in the same code? (a) JYHO (b) LAJQ (c) KZIP (d) QBSL
- 27.If BELL is written as MMFC, how is NEST written in the same code? (a) TSEN (b) UTFO (c) SRDM (d) OFTU
- 28.If TREE is written as EERT, how is JUMP written in the same code? (a) KVNQ (b) PMUJ (c) QNVK (d) OLTI
- 29.If HAND is written as DNAH, how is RAIN written in the same code? (a) MHZQ (b) OJBS (c) NIAR (d) SBJO
- 30.If BOOK is written as ZMMI, how is CAKE written in the same code? (a) ECMG (b) BZJD (c) AYIC (d) ZXHB
- 31.If BOOK is written as CPPL, how is MILK written in the same code? (a) LHKJ (b) LMJN (c) NJML (d) OKNM
- 32.If COLD is written as DPME, how is MILK written in the same code? (a) OKNM (b) LMJN (c) NJML (d) LHKJ
- 33.If JUMP is written as PMUJ, how is CAKE written in the same code? (a) DBLF (b) EKAC (c) DJZB (d) FLBD
- 34.If SUN is written as TVO, how is DOG written in the same code? (a) CNF (b) HPE (c) FQI (d) EPH
- 35.If BELL is written as KKDA, how is BOOK written in the same code? (a) LPPC (b) KOOB (c) JNNA (d) ANNJ
- 36.If DRUM is written as WIFN, how is BOOK written in the same code? (a) CPPL (b) YLLP (c) XKKO (d) ZMMQ
- 37.If WIND is written as DRMW, how is SUN written in the same code? (a) HFM (b) GEL (c) TVO (d) IGN
- 38.If CAT is written as XZG, how is BALL written in the same code? (a) XYNN (b) CBMM (c) YZOO (d) ZAPP
- 39.If HAND is written as CMZG, how is PEN written in the same code? (a) ODM (b) OFQ (c) MDO (d) NEP
- 40.If BELL is written as YVOO, how is COLD written in the same code? (a) YMPX (b) DPME (c) WKNV (d) XLOW
Answer key
- CDRJ
- URHS
- HPSG
- ZCJJ
- GZMC
- GORF
- GIVV
- GIVV
- IZRM
- NEP
- HSIF
- NROP
- KVNQ
- RKJU
- LLAB
- ETIK
- SHQ
- RSZQ
- MQQD
- KHNM
- OZNK
- TLOW
- DLOG
- DNAH
- HPE
- KZIP
- UTFO
- PMUJ
- NIAR
- AYIC
- NJML
- NJML
- EKAC
- EPH
- JNNA
- YLLP
- HFM
- YZOO
- MDO
- XLOW
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