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 MOON is written as OPPN, how is FISH written in the same code? (a) HSIF (b) GRHE (c) ITJG (d) GJTI
- 2.If STAR is written as SBUT, how is CAKE written in the same code? (a) DBLF (b) EKAC (c) FLBD (d) DJZB
- 3.If KITE is written as JHSD, how is TOYS written in the same code? (a) UPZT (b) SNXR (c) RMWQ (d) TOYS
- 4.If RAIN is written as MHZQ, how is FISH written in the same code? (a) EHRG (b) ITJG (c) GRHE (d) HSIF
- 5.If LION is written as PQKN, how is COLD written in the same code? (a) EQNF (b) DLOC (c) FNQE (d) BJMA
- 6.If MILK is written as KLIM, how is NEST written in the same code? (a) SRDM (b) TSEN (c) UTFO (d) OFTU
- 7.If BOAT is written as ZMYR, how is GOLD written in the same code? (a) FNKC (b) DLIA (c) EMJB (d) IQNF
- 8.If DRUM is written as LTQC, how is TOYS written in the same code? (a) SNXR (b) SYOT (c) TZPU (d) RXNS
- 9.If HAND is written as DNAH, how is MILK written in the same code? (a) NJML (b) KLIM (c) JKHL (d) LMJN
- 10.If CAKE is written as BZJD, how is HAND written in the same code? (a) GZMC (b) HAND (c) FYLB (d) IBOE
- 11.If NEST is written as MVHG, how is LION written in the same code? (a) NQKL (b) PSMN (c) ORLM (d) MJPO
- 12.If PARK is written as KZIP, how is COLD written in the same code? (a) WKNV (b) YMPX (c) XLOW (d) DPME
- 13.If TOYS is written as GLBH, how is DESK written in the same code? (a) EFTL (b) XWIQ (c) WVHP (d) VUGO
- 14.If MILK is written as LMJN, how is CAKE written in the same code? (a) FLBD (b) DJZB (c) DBLF (d) EKAC
- 15.If HAND is written as IBOE, how is BOOK written in the same code? (a) ANNJ (b) CPPL (c) LPPC (d) DQQM
- 16.If TOYS is written as TZPU, how is DESK written in the same code? (a) KSED (b) JRDC (c) EFTL (d) LTFE
- 17.If WIND is written as DRMW, how is SUN written in the same code? (a) HFM (b) TVO (c) IGN (d) GEL
- 18.If NEST is written as TSEN, how is SUN written in the same code? (a) NUS (b) OVT (c) MTR (d) TVO
- 19.If BOAT is written as CPBU, how is KITE written in the same code? (a) FUJL (b) JHSD (c) LJUF (d) MKVG
- 20.If COLD is written as DLOC, how is BOAT written in the same code? (a) SZNA (b) CPBU (c) TAOB (d) UBPC
- 21.If RAIN is written as SBJO, how is JUMP written in the same code? (a) ITLO (b) QNVK (c) KVNQ (d) LWOR
- 22.If SHIP is written as PIHS, how is DRUM written in the same code? (a) LTQC (b) MURD (c) ESVN (d) NVSE
- 23.If BOAT is written as TAOB, how is DOG written in the same code? (a) HPE (b) FNC (c) EPH (d) GOD
- 24.If SUN is written as NUS, how is MILK written in the same code? (a) NJML (b) JKHL (c) LMJN (d) KLIM
- 25.If HAND is written as DNAH, how is TOYS written in the same code? (a) RXNS (b) TZPU (c) UPZT (d) SYOT
- 26.If DOG is written as GOD, how is FROG written in the same code? (a) GSPH (b) FNQE (c) GORF (d) HPSG
- 27.If TOYS is written as SYOT, how is CAKE written in the same code? (a) EKAC (b) DJZB (c) DBLF (d) FLBD
- 28.If BOOK is written as KOOB, how is LION written in the same code? (a) OPJM (b) NOIL (c) MJPO (d) MNHK
- 29.If CAKE is written as ECMG, how is SUN written in the same code? (a) TVO (b) QSL (c) VXQ (d) UWP
- 30.If TREE is written as GIVV, how is PEN written in the same code? (a) KVM (b) LWN (c) QFO (d) JUL
- 31.If JUMP is written as QFNK, how is MOON written in the same code? (a) NPPO (b) NLLM (c) OMMN (d) MKKL
- 32.If BOOK is written as KOOB, how is DESK written in the same code? (a) EFTL (b) JRDC (c) LTFE (d) KSED
- 33.If DESK is written as GHVN, how is HAND written in the same code? (a) JCPF (b) KDQG (c) LERH (d) EXKA
- 34.If PARK is written as QBSL, how is DESK written in the same code? (a) CDRJ (b) EFTL (c) FGUM (d) LTFE
- 35.If GOLD is written as TLOW, how is MOON written in the same code? (a) NLLM (b) OMMN (c) MKKL (d) NPPO
- 36.If KITE is written as GVKM, how is MOON written in the same code? (a) NOOM (b) OQQP (c) LMMK (d) PQQO
- 37.If FISH is written as URHS, how is NEST written in the same code? (a) LUGF (b) OFTU (c) MVHG (d) NWIH
- 38.If SHIP is written as UJKR, how is BELL written in the same code? (a) CFMM (b) DGNN (c) ZCJJ (d) EHOO
- 39.If BOAT is written as YLZG, how is TREE written in the same code? (a) HJWW (b) GIVV (c) USFF (d) FHUU
- 40.If DRUM is written as LTQC, how is SHIP written in the same code? (a) RGHO (b) PIHS (c) OHGR (d) QJIT
Answer key
- ITJG
- FLBD
- SNXR
- GRHE
- FNQE
- TSEN
- EMJB
- RXNS
- KLIM
- GZMC
- ORLM
- XLOW
- WVHP
- FLBD
- CPPL
- LTFE
- HFM
- NUS
- LJUF
- TAOB
- KVNQ
- MURD
- GOD
- KLIM
- SYOT
- GORF
- EKAC
- NOIL
- UWP
- KVM
- NLLM
- KSED
- KDQG
- EFTL
- NLLM
- PQQO
- MVHG
- DGNN
- GIVV
- OHGR
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