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 GOLD is written as TLOW, how is MILK written in the same code? (a) NJML (b) OSPQ (c) MQNO (d) NROP
- 2.If TREE is written as EERT, how is PEN written in the same code? (a) MDO (b) NEP (c) OFQ (d) QFO
- 3.If NEST is written as MVHG, how is TREE written in the same code? (a) FHUU (b) GIVV (c) USFF (d) HJWW
- 4.If TOYS is written as GLBH, how is FISH written in the same code? (a) TQGR (b) VSIT (c) URHS (d) GJTI
- 5.If DRUM is written as MURD, how is FISH written in the same code? (a) GRHE (b) ITJG (c) GJTI (d) HSIF
- 6.If JUMP is written as KVNQ, how is GOLD written in the same code? (a) IQNF (b) EMPH (c) FNKC (d) HPME
- 7.If STAR is written as UVCT, how is PEN written in the same code? (a) QFO (b) NCL (c) RGP (d) SHQ
- 8.If COLD is written as EQNF, how is HAND written in the same code? (a) FYLB (b) KDQG (c) IBOE (d) JCPF
- 9.If MILK is written as KLIM, how is HAND written in the same code? (a) EOBI (b) IBOE (c) CMZG (d) DNAH
- 10.If DOG is written as HPE, how is CAT written in the same code? (a) TAC (b) DBU (c) SZB (d) UBD
- 11.If HAND is written as SZMW, how is FROG written in the same code? (a) THKS (b) GSPH (c) VJMU (d) UILT
- 12.If TREE is written as EERT, how is CAKE written in the same code? (a) FLBD (b) EKAC (c) DJZB (d) DBLF
- 13.If CAT is written as TAC, how is NEST written in the same code? (a) UTFO (b) OFTU (c) TSEN (d) SRDM
- 14.If NEST is written as TSEN, how is DRUM written in the same code? (a) NVSE (b) LTQC (c) MURD (d) ESVN
- 15.If TREE is written as GIVV, how is HAND written in the same code? (a) SZMW (b) IBOE (c) TANX (d) RYLV
- 16.If TREE is written as GIVV, how is KITE written in the same code? (a) QSHW (b) PRGV (c) OQFU (d) LJUF
- 17.If BOAT is written as VCQD, how is CAKE written in the same code? (a) ECMG (b) GMCE (c) EKAC (d) CIYA
- 18.If CAT is written as ECV, how is BOAT written in the same code? (a) ERDW (b) ZMYR (c) CPBU (d) DQCV
- 19.If MILK is written as KLIM, how is BOOK written in the same code? (a) JNNA (b) CPPL (c) KOOB (d) LPPC
- 20.If MILK is written as KLIM, how is RAIN written in the same code? (a) MHZQ (b) SBJO (c) OJBS (d) NIAR
- 21.If LAMP is written as JYKN, how is DRUM written in the same code? (a) CQTL (b) FTWO (c) AORJ (d) BPSK
- 22.If LION is written as KHNM, how is SHIP written in the same code? (a) RGHO (b) SHIP (c) TIJQ (d) QFGN
- 23.If BALL is written as CBMM, how is STAR written in the same code? (a) UVCT (b) TUBS (c) RSZQ (d) SBUT
- 24.If CAKE is written as FLBD, how is STAR written in the same code? (a) TUBS (b) RATS (c) SBUT (d) QZSR
- 25.If SHIP is written as QJIT, how is LION written in the same code? (a) MJPO (b) OPJM (c) MNHK (d) NOIL
- 26.If BALL is written as YZOO, how is MOON written in the same code? (a) NPPO (b) NLLM (c) MKKL (d) OMMN
- 27.If MILK is written as NROP, how is BALL written in the same code? (a) CBMM (b) YZOO (c) ZAPP (d) XYNN
- 28.If SHIP is written as HSRK, how is TOYS written in the same code? (a) HMCI (b) FKAG (c) UPZT (d) GLBH
- 29.If LAMP is written as OZNK, how is WIND written in the same code? (a) XJOE (b) DRMW (c) ESNX (d) CQLV
- 30.If PEN is written as MDO, how is PARK written in the same code? (a) OZQJ (b) JQZO (c) KRAP (d) LSBQ
- 31.If GOLD is written as EMPH, how is CAKE written in the same code? (a) EKAC (b) DBLF (c) DJZB (d) FLBD
- 32.If LION is written as ORLM, how is RAIN written in the same code? (a) JASN (b) IZRM (c) SBJO (d) HYQL
- 33.If SUN is written as PWU, how is BALL written in the same code? (a) LLAB (b) NNCD (c) JJYZ (d) DCNN
- 34.If MOON is written as OPPN, how is NEST written in the same code? (a) TSEN (b) UTFO (c) SRDM (d) OFTU
- 35.If LION is written as ORLM, how is PARK written in the same code? (a) LAJQ (b) KZIP (c) JYHO (d) QBSL
- 36.If FISH is written as URHS, how is CAT written in the same code? (a) DBU (b) XZG (c) YAH (d) WYF
- 37.If STAR is written as RATS, how is SHIP written in the same code? (a) PIHS (b) TIJQ (c) QJIT (d) OHGR
- 38.If TREE is written as GGTV, how is FROG written in the same code? (a) EMPD (b) GORF (c) HTQI (d) IQTH
- 39.If SUN is written as VXQ, how is HAND written in the same code? (a) KDQG (b) LERH (c) JCPF (d) EXKA
- 40.If BOOK is written as DQQM, how is BELL written in the same code? (a) DGNN (b) EHOO (c) ZCJJ (d) CFMM
Answer key
- NROP
- NEP
- GIVV
- URHS
- HSIF
- HPME
- RGP
- JCPF
- DNAH
- UBD
- UILT
- EKAC
- TSEN
- MURD
- SZMW
- PRGV
- GMCE
- DQCV
- KOOB
- NIAR
- BPSK
- RGHO
- TUBS
- SBUT
- OPJM
- NLLM
- YZOO
- GLBH
- DRMW
- JQZO
- FLBD
- IZRM
- NNCD
- UTFO
- KZIP
- XZG
- PIHS
- IQTH
- KDQG
- DGNN
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