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 PEN is written as QFO, how is BELL written in the same code? (a) ADKK (b) CFMM (c) MMFC (d) DGNN
- 2.If FISH is written as DGQF, how is CAT written in the same code? (a) ZXQ (b) ECV (c) BZS (d) AYR
- 3.If CAKE is written as XZPV, how is PARK written in the same code? (a) JYHO (b) KZIP (c) LAJQ (d) QBSL
- 4.If PARK is written as KRAP, how is WIND written in the same code? (a) CMHV (b) EOJX (c) DNIW (d) XJOE
- 5.If BOOK is written as YLLP, how is DESK written in the same code? (a) VUGO (b) EFTL (c) WVHP (d) XWIQ
- 6.If PARK is written as KRAP, how is PEN written in the same code? (a) QFO (b) MDO (c) OFQ (d) NEP
- 7.If PARK is written as LSBQ, how is MOON written in the same code? (a) MNNL (b) OPPN (c) NOOM (d) NPPO
- 8.If RAIN is written as NIAR, how is PARK written in the same code? (a) QBSL (b) KRAP (c) LSBQ (d) JQZO
- 9.If STAR is written as QZSR, how is SHIP written in the same code? (a) OHGR (b) PIHS (c) RGHO (d) QJIT
- 10.If KITE is written as PRGV, how is FISH written in the same code? (a) VSIT (b) TQGR (c) URHS (d) GJTI
- 11.If HAND is written as SZMW, how is FISH written in the same code? (a) GJTI (b) TQGR (c) VSIT (d) URHS
- 12.If NEST is written as TSEN, how is MILK written in the same code? (a) LMJN (b) KLIM (c) JKHL (d) NJML
- 13.If PEN is written as NEP, how is FROG written in the same code? (a) HPSG (b) FNQE (c) GSPH (d) GORF
- 14.If KITE is written as NLWH, how is COLD written in the same code? (a) GSPH (b) FROG (c) EQNF (d) ZLIA
- 15.If TOYS is written as SNXR, how is LAMP written in the same code? (a) MBNQ (b) LAMP (c) JYKN (d) KZLO
- 16.If MOON is written as NOOM, how is BALL written in the same code? (a) KKZA (b) MMBC (c) LLAB (d) CBMM
- 17.If STAR is written as HGZI, how is MILK written in the same code? (a) NROP (b) NJML (c) OSPQ (d) MQNO
- 18.If HAND is written as SZMW, how is COLD written in the same code? (a) DPME (b) XLOW (c) WKNV (d) YMPX
- 19.If KITE is written as MKVG, how is DOG written in the same code? (a) EPH (b) FQI (c) GRJ (d) BME
- 20.If MOON is written as NLLM, how is CAT written in the same code? (a) DBU (b) XZG (c) YAH (d) WYF
- 21.If JUMP is written as QNVK, how is STAR written in the same code? (a) RATS (b) TUBS (c) QZSR (d) SBUT
- 22.If MILK is written as PLON, how is COLD written in the same code? (a) GSPH (b) FROG (c) ZLIA (d) EQNF
- 23.If NEST is written as MVHG, how is STAR written in the same code? (a) IHAJ (b) TUBS (c) HGZI (d) GFYH
- 24.If MILK is written as KLIM, how is DOG written in the same code? (a) GOD (b) HPE (c) FNC (d) EPH
- 25.If DESK is written as FGUM, how is FROG written in the same code? (a) HTQI (b) DPME (c) IURJ (d) GSPH
- 26.If SUN is written as NUS, how is CAT written in the same code? (a) UBD (b) SZB (c) DBU (d) TAC
- 27.If DRUM is written as NVSE, how is COLD written in the same code? (a) DLOC (b) CKNB (c) EMPD (d) DPME
- 28.If DRUM is written as CQTL, how is GOLD written in the same code? (a) GOLD (b) HPME (c) EMJB (d) FNKC
- 29.If BOAT is written as YLZG, how is MOON written in the same code? (a) OMMN (b) MKKL (c) NPPO (d) NLLM
- 30.If DRUM is written as WIFN, how is DESK written in the same code? (a) XWIQ (b) VUGO (c) WVHP (d) EFTL
- 31.If DOG is written as GOD, how is PEN written in the same code? (a) QFO (b) MDO (c) OFQ (d) NEP
- 32.If LAMP is written as MBNQ, how is HAND written in the same code? (a) JCPF (b) GZMC (c) EOBI (d) IBOE
- 33.If BELL is written as YVOO, how is RAIN written in the same code? (a) IZRM (b) HYQL (c) SBJO (d) JASN
- 34.If DRUM is written as MURD, how is SHIP written in the same code? (a) TIJQ (b) OHGR (c) PIHS (d) QJIT
- 35.If BELL is written as ZCJJ, how is JUMP written in the same code? (a) ITLO (b) LWOR (c) HSKN (d) GRJM
- 36.If WIND is written as CMHV, how is GOLD written in the same code? (a) DLOG (b) EMPH (c) FNKC (d) CKNF
- 37.If SUN is written as NUS, how is PEN written in the same code? (a) MDO (b) NEP (c) QFO (d) OFQ
- 38.If WIND is written as DRMW, how is FROG written in the same code? (a) GSPH (b) THKS (c) UILT (d) VJMU
- 39.If RAIN is written as UDLQ, how is SHIP written in the same code? (a) VKLS (b) PEFM (c) WLMT (d) UJKR
- 40.If PARK is written as KZIP, how is SHIP written in the same code? (a) TIJQ (b) ITSL (c) GRQJ (d) HSRK
Answer key
- CFMM
- AYR
- KZIP
- DNIW
- WVHP
- NEP
- OPPN
- KRAP
- OHGR
- URHS
- URHS
- KLIM
- GORF
- FROG
- KZLO
- LLAB
- NROP
- XLOW
- FQI
- XZG
- SBUT
- FROG
- HGZI
- GOD
- HTQI
- TAC
- EMPD
- FNKC
- NLLM
- WVHP
- NEP
- IBOE
- IZRM
- PIHS
- HSKN
- CKNF
- NEP
- UILT
- VKLS
- HSRK
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