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 DRUM written in the same code? (a) WIFN (b) ESVN (c) VHEM (d) XJGO
- 2.If BELL is written as CFMM, how is LION written in the same code? (a) OPJM (b) KHNM (c) MJPO (d) NKQP
- 3.If SHIP is written as TIJQ, how is WIND written in the same code? (a) XJOE (b) EOJX (c) VHMC (d) YKPF
- 4.If TOYS is written as RXNS, how is MILK written in the same code? (a) KLIM (b) LMJN (c) LHKJ (d) JKHL
- 5.If GOLD is written as HPME, how is PEN written in the same code? (a) QFO (b) RGP (c) ODM (d) OFQ
- 6.If FISH is written as JUKH, how is KITE written in the same code? (a) ETIK (b) MKVG (c) GVKM (d) CRGI
- 7.If PARK is written as KRAP, how is NEST written in the same code? (a) TSEN (b) UTFO (c) SRDM (d) OFTU
- 8.If NEST is written as TSEN, how is BALL written in the same code? (a) CBMM (b) LLAB (c) KKZA (d) MMBC
- 9.If GOLD is written as TLOW, how is WIND written in the same code? (a) XJOE (b) ESNX (c) DRMW (d) CQLV
- 10.If HAND is written as SZMW, how is BOOK written in the same code? (a) XKKO (b) ZMMQ (c) CPPL (d) YLLP
- 11.If FISH is written as HSIF, how is STAR written in the same code? (a) SBUT (b) QZSR (c) TUBS (d) RATS
- 12.If WIND is written as DNIW, how is LAMP written in the same code? (a) OLZK (b) MBNQ (c) PMAL (d) QNBM
- 13.If LION is written as MNHK, how is COLD written in the same code? (a) CKNB (b) BNKC (c) EMPD (d) DLOC
- 14.If KITE is written as PRGV, how is STAR written in the same code? (a) IHAJ (b) TUBS (c) GFYH (d) HGZI
- 15.If GOLD is written as DLOG, how is JUMP written in the same code? (a) PMUJ (b) OLTI (c) QNVK (d) KVNQ
- 16.If CAKE is written as XZPV, how is CAT written in the same code? (a) WYF (b) YAH (c) DBU (d) XZG
- 17.If STAR is written as HGZI, how is MILK written in the same code? (a) MQNO (b) NJML (c) OSPQ (d) NROP
- 18.If STAR is written as QZSR, how is HAND written in the same code? (a) EOBI (b) CMZG (c) DNAH (d) GZMC
- 19.If FROG is written as UILT, how is CAKE written in the same code? (a) YAQW (b) WYOU (c) DBLF (d) XZPV
- 20.If PEN is written as MDO, how is BOAT written in the same code? (a) UBPC (b) ANZS (c) TAOB (d) SZNA
- 21.If CAKE is written as XZPV, how is NEST written in the same code? (a) MVHG (b) OFTU (c) NWIH (d) LUGF
- 22.If LAMP is written as KZLO, how is LION written in the same code? (a) JGML (b) LION (c) MJPO (d) KHNM
- 23.If JUMP is written as MXPS, how is PEN written in the same code? (a) SHQ (b) TIR (c) MBK (d) RGP
- 24.If NEST is written as PGUV, how is SUN written in the same code? (a) QSL (b) TVO (c) UWP (d) VXQ
- 25.If RAIN is written as OJBS, how is GOLD written in the same code? (a) DLOG (b) HPME (c) EMPH (d) CKNF
- 26.If RAIN is written as IZRM, how is BOOK written in the same code? (a) CPPL (b) YLLP (c) ZMMQ (d) XKKO
- 27.If BOOK is written as DQQM, how is DOG written in the same code? (a) FQI (b) EPH (c) GRJ (d) BME
- 28.If COLD is written as AMJB, how is PARK written in the same code? (a) RCTM (b) OZQJ (c) MXOH (d) NYPI
- 29.If BALL is written as CBMM, how is STAR written in the same code? (a) SBUT (b) RSZQ (c) TUBS (d) UVCT
- 30.If LAMP is written as OZNK, how is MOON written in the same code? (a) NLLM (b) OMMN (c) NPPO (d) MKKL
- 31.If CAT is written as SZB, how is MILK written in the same code? (a) JKHL (b) LMJN (c) KLIM (d) LHKJ
- 32.If BELL is written as YVOO, how is DESK written in the same code? (a) EFTL (b) XWIQ (c) VUGO (d) WVHP
- 33.If COLD is written as CKNB, how is BELL written in the same code? (a) LLEB (b) KKDA (c) MMFC (d) ADKK
- 34.If BOAT is written as YLZG, how is PEN written in the same code? (a) JUL (b) QFO (c) KVM (d) LWN
- 35.If NEST is written as MDRS, how is SUN written in the same code? (a) TVO (b) RTM (c) SUN (d) QSL
- 36.If TOYS is written as GLBH, how is DRUM written in the same code? (a) ESVN (b) VHEM (c) XJGO (d) WIFN
- 37.If SHIP is written as PIHS, how is LION written in the same code? (a) OPJM (b) NOIL (c) MNHK (d) MJPO
- 38.If NEST is written as TSEN, how is HAND written in the same code? (a) EOBI (b) DNAH (c) IBOE (d) CMZG
- 39.If PARK is written as SDUN, how is COLD written in the same code? (a) ZLIA (b) EQNF (c) FROG (d) GSPH
- 40.If CAT is written as VCE, how is DESK written in the same code? (a) MUGF (b) IQCB (c) FGUM (d) KSED
Answer key
- WIFN
- MJPO
- XJOE
- JKHL
- QFO
- GVKM
- TSEN
- LLAB
- DRMW
- YLLP
- RATS
- PMAL
- CKNB
- HGZI
- PMUJ
- XZG
- NROP
- CMZG
- XZPV
- SZNA
- MVHG
- KHNM
- SHQ
- UWP
- EMPH
- YLLP
- FQI
- NYPI
- TUBS
- NLLM
- JKHL
- WVHP
- KKDA
- KVM
- RTM
- WIFN
- NOIL
- DNAH
- FROG
- MUGF
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