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 CAT is written as DBU, how is HAND written in the same code? (a) JCPF (b) GZMC (c) IBOE (d) EOBI
- 2.If PARK is written as OZQJ, how is MILK written in the same code? (a) MILK (b) KGJI (c) NJML (d) LHKJ
- 3.If TREE is written as RPCC, how is HAND written in the same code? (a) FYLB (b) GZMC (c) JCPF (d) EXKA
- 4.If BOAT is written as VCQD, how is STAR written in the same code? (a) RATS (b) UVCT (c) PYRQ (d) TCVU
- 5.If STAR is written as HGZI, how is KITE written in the same code? (a) QSHW (b) OQFU (c) LJUF (d) PRGV
- 6.If NEST is written as UTFO, how is PEN written in the same code? (a) OFQ (b) NEP (c) QFO (d) MDO
- 7.If BELL is written as DGNN, how is FISH written in the same code? (a) GJTI (b) DGQF (c) ILVK (d) HKUJ
- 8.If SHIP is written as QJIT, how is LION written in the same code? (a) NOIL (b) MJPO (c) OPJM (d) MNHK
- 9.If DOG is written as HPE, how is TREE written in the same code? (a) USFF (b) EERT (c) FFSU (d) DDQS
- 10.If BELL is written as CFMM, how is KITE written in the same code? (a) JHSD (b) LJUF (c) MKVG (d) FUJL
- 11.If HAND is written as CMZG, how is DRUM written in the same code? (a) LTQC (b) CQTL (c) MURD (d) NVSE
- 12.If BELL is written as MMFC, how is CAKE written in the same code? (a) EKAC (b) FLBD (c) DBLF (d) DJZB
- 13.If HAND is written as SZMW, how is DOG written in the same code? (a) WLT (b) XMU (c) VKS (d) EPH
- 14.If PEN is written as MDO, how is GOLD written in the same code? (a) CKNF (b) FNKC (c) EMPH (d) DLOG
- 15.If BELL is written as KKDA, how is TOYS written in the same code? (a) SYOT (b) SNXR (c) TZPU (d) RXNS
- 16.If BOOK is written as JNNA, how is TOYS written in the same code? (a) SNXR (b) RXNS (c) SYOT (d) TZPU
- 17.If FROG is written as GORF, how is BALL written in the same code? (a) LLAB (b) CBMM (c) MMBC (d) KKZA
- 18.If TREE is written as USFF, how is BOAT written in the same code? (a) UBPC (b) ANZS (c) DQCV (d) CPBU
- 19.If SUN is written as RTM, how is RAIN written in the same code? (a) PYGL (b) SBJO (c) RAIN (d) QZHM
- 20.If JUMP is written as QFNK, how is BALL written in the same code? (a) YZOO (b) CBMM (c) XYNN (d) ZAPP
- 21.If LION is written as NOIL, how is MILK written in the same code? (a) LMJN (b) NJML (c) JKHL (d) KLIM
- 22.If MILK is written as KLIM, how is RAIN written in the same code? (a) NIAR (b) OJBS (c) MHZQ (d) SBJO
- 23.If CAKE is written as AYIC, how is GOLD written in the same code? (a) FNKC (b) DLIA (c) EMJB (d) IQNF
- 24.If PEN is written as NCL, how is TREE written in the same code? (a) VTGG (b) QOBB (c) RPCC (d) SQDD
- 25.If MILK is written as PLON, how is MOON written in the same code? (a) OQQP (b) PRRQ (c) JLLK (d) QSSR
- 26.If COLD is written as DLOC, how is DESK written in the same code? (a) EFTL (b) JRDC (c) KSED (d) LTFE
- 27.If PEN is written as KVM, how is HAND written in the same code? (a) IBOE (b) RYLV (c) SZMW (d) TANX
- 28.If CAT is written as SZB, how is MOON written in the same code? (a) MNNL (b) NOOM (c) OPPN (d) LNNM
- 29.If SHIP is written as RKJU, how is GOLD written in the same code? (a) DLOG (b) IQNF (c) BJME (d) FNQI
- 30.If BOOK is written as DQQM, how is KITE written in the same code? (a) LJUF (b) IGRC (c) MKVG (d) NLWH
- 31.If BELL is written as LLEB, how is TOYS written in the same code? (a) RXNS (b) TZPU (c) SYOT (d) UPZT
- 32.If CAT is written as DBU, how is TREE written in the same code? (a) SQDD (b) VTGG (c) USFF (d) FFSU
- 33.If BOOK is written as ZMMI, how is FISH written in the same code? (a) CFPE (b) HKUJ (c) DGQF (d) EHRG
- 34.If CAT is written as TAC, how is KITE written in the same code? (a) LJUF (b) ETIK (c) DSHJ (d) FUJL
- 35.If CAT is written as XZG, how is FISH written in the same code? (a) GJTI (b) TQGR (c) VSIT (d) URHS
- 36.If JUMP is written as QFNK, how is WIND written in the same code? (a) DRMW (b) ESNX (c) CQLV (d) XJOE
- 37.If BOAT is written as TAOB, how is TREE written in the same code? (a) EERT (b) DDQS (c) FFSU (d) USFF
- 38.If GOLD is written as CKNF, how is DRUM written in the same code? (a) LTQC (b) CQTL (c) NVSE (d) MURD
- 39.If WIND is written as DRMW, how is GOLD written in the same code? (a) UMPX (b) SKNV (c) TLOW (d) HPME
- 40.If TREE is written as EERT, how is WIND written in the same code? (a) XJOE (b) CMHV (c) EOJX (d) DNIW
Answer key
- IBOE
- LHKJ
- FYLB
- TCVU
- PRGV
- OFQ
- HKUJ
- OPJM
- FFSU
- LJUF
- LTQC
- FLBD
- WLT
- CKNF
- RXNS
- RXNS
- LLAB
- CPBU
- QZHM
- YZOO
- KLIM
- NIAR
- EMJB
- RPCC
- PRRQ
- KSED
- SZMW
- MNNL
- FNQI
- MKVG
- SYOT
- USFF
- DGQF
- ETIK
- URHS
- DRMW
- EERT
- LTQC
- TLOW
- DNIW
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