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 DRUM written in the same code? (a) CQTL (b) NVSE (c) ESVN (d) FTWO
- 2.If FROG is written as FNQE, how is WIND written in the same code? (a) CMHV (b) DNIW (c) VHMC (d) EOJX
- 3.If SUN is written as VXQ, how is SHIP written in the same code? (a) PEFM (b) WLMT (c) VKLS (d) UJKR
- 4.If HAND is written as JCPF, how is BALL written in the same code? (a) EDOO (b) ZYJJ (c) DCNN (d) CBMM
- 5.If CAKE is written as AYIC, how is NEST written in the same code? (a) MDRS (b) KBPQ (c) LCQR (d) PGUV
- 6.If MOON is written as OPPN, how is GOLD written in the same code? (a) HPME (b) DLOG (c) EMPH (d) CKNF
- 7.If CAT is written as TAC, how is COLD written in the same code? (a) DPME (b) EMPD (c) DLOC (d) CKNB
- 8.If LION is written as JGML, how is TOYS written in the same code? (a) QLVP (b) RMWQ (c) SNXR (d) VQAU
- 9.If KITE is written as LJUF, how is FISH written in the same code? (a) ITJG (b) GJTI (c) HKUJ (d) EHRG
- 10.If GOLD is written as TLOW, how is NEST written in the same code? (a) OFTU (b) MVHG (c) NWIH (d) LUGF
- 11.If DOG is written as FNC, how is MOON written in the same code? (a) OPPN (b) NOOM (c) MNNL (d) LNNM
- 12.If FROG is written as GORF, how is DOG written in the same code? (a) HPE (b) FNC (c) EPH (d) GOD
- 13.If PEN is written as NEP, how is JUMP written in the same code? (a) OLTI (b) KVNQ (c) PMUJ (d) QNVK
- 14.If LION is written as KHNM, how is FISH written in the same code? (a) GJTI (b) FISH (c) DGQF (d) EHRG
- 15.If JUMP is written as QFNK, how is TREE written in the same code? (a) USFF (b) HJWW (c) FHUU (d) GIVV
- 16.If CAKE is written as DJZB, how is STAR written in the same code? (a) QZSR (b) RATS (c) RSZQ (d) SBUT
- 17.If FROG is written as IQTH, how is CAT written in the same code? (a) VCE (b) RYA (c) TAC (d) ECV
- 18.If TREE is written as FFSU, how is SUN written in the same code? (a) NUS (b) MTR (c) TVO (d) OVT
- 19.If CAKE is written as BZJD, how is KITE written in the same code? (a) KITE (b) LJUF (c) JHSD (d) IGRC
- 20.If NEST is written as PGUV, how is MOON written in the same code? (a) KMML (b) PRRQ (c) NPPO (d) OQQP
- 21.If COLD is written as EMPD, how is NEST written in the same code? (a) TSEN (b) UTFO (c) SRDM (d) OFTU
- 22.If SUN is written as OVT, how is CAT written in the same code? (a) SZB (b) TAC (c) UBD (d) DBU
- 23.If HAND is written as DNAH, how is DOG written in the same code? (a) FNC (b) EPH (c) HPE (d) GOD
- 24.If KITE is written as IGRC, how is DRUM written in the same code? (a) CQTL (b) FTWO (c) AORJ (d) BPSK
- 25.If SUN is written as NUS, how is SHIP written in the same code? (a) QJIT (b) PIHS (c) OHGR (d) TIJQ
- 26.If MOON is written as NLLM, how is BALL written in the same code? (a) CBMM (b) YZOO (c) ZAPP (d) XYNN
- 27.If DOG is written as HPE, how is LION written in the same code? (a) OPJM (b) NOIL (c) MJPO (d) MNHK
- 28.If MILK is written as NROP, how is DOG written in the same code? (a) XMU (b) WLT (c) VKS (d) EPH
- 29.If PEN is written as QFO, how is BOOK written in the same code? (a) LPPC (b) CPPL (c) ANNJ (d) DQQM
- 30.If DRUM is written as NVSE, how is JUMP written in the same code? (a) PMUJ (b) KVNQ (c) OLTI (d) QNVK
- 31.If PEN is written as NEP, how is NEST written in the same code? (a) UTFO (b) OFTU (c) TSEN (d) SRDM
- 32.If LAMP is written as ODPS, how is COLD written in the same code? (a) ZLIA (b) GSPH (c) EQNF (d) FROG
- 33.If DRUM is written as WIFN, how is FROG written in the same code? (a) GSPH (b) VJMU (c) UILT (d) THKS
- 34.If FISH is written as URHS, how is LAMP written in the same code? (a) NYMJ (b) PAOL (c) MBNQ (d) OZNK
- 35.If KITE is written as ETIK, how is TREE written in the same code? (a) EERT (b) DDQS (c) FFSU (d) USFF
- 36.If TOYS is written as SNXR, how is NEST written in the same code? (a) MDRS (b) OFTU (c) NEST (d) LCQR
- 37.If NEST is written as MVHG, how is CAT written in the same code? (a) WYF (b) XZG (c) DBU (d) YAH
- 38.If KITE is written as PRGV, how is NEST written in the same code? (a) OFTU (b) NWIH (c) MVHG (d) LUGF
- 39.If STAR is written as QRYP, how is MILK written in the same code? (a) LHKJ (b) KGJI (c) JFIH (d) OKNM
- 40.If WIND is written as EOJX, how is LAMP written in the same code? (a) MBNQ (b) PMAL (c) QNBM (d) OLZK
Answer key
- ESVN
- CMHV
- VKLS
- DCNN
- LCQR
- EMPH
- DLOC
- RMWQ
- GJTI
- MVHG
- MNNL
- GOD
- PMUJ
- EHRG
- GIVV
- QZSR
- VCE
- OVT
- JHSD
- OQQP
- UTFO
- UBD
- GOD
- BPSK
- PIHS
- YZOO
- OPJM
- WLT
- CPPL
- QNVK
- TSEN
- FROG
- UILT
- OZNK
- EERT
- MDRS
- XZG
- MVHG
- KGJI
- QNBM
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