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 FROG is written as GORF, how is GOLD written in the same code? (a) EMPH (b) HPME (c) DLOG (d) CKNF
- 2.If CAT is written as BZS, how is FISH written in the same code? (a) FISH (b) DGQF (c) GJTI (d) EHRG
- 3.If PARK is written as OZQJ, how is WIND written in the same code? (a) VHMC (b) WIND (c) XJOE (d) UGLB
- 4.If MILK is written as NROP, how is DRUM written in the same code? (a) XJGO (b) WIFN (c) ESVN (d) VHEM
- 5.If LION is written as OPJM, how is HAND written in the same code? (a) IBOE (b) CMZG (c) EOBI (d) DNAH
- 6.If WIND is written as FPKY, how is BELL written in the same code? (a) LLEB (b) DGNN (c) NNGD (d) JJCZ
- 7.If CAKE is written as FLBD, how is FISH written in the same code? (a) ITJG (b) GJTI (c) GRHE (d) HSIF
- 8.If WIND is written as DRMW, how is BOAT written in the same code? (a) CPBU (b) XKYF (c) YLZG (d) ZMAH
- 9.If HAND is written as DNAH, how is STAR written in the same code? (a) QZSR (b) TUBS (c) SBUT (d) RATS
- 10.If TOYS is written as UPZT, how is BOAT written in the same code? (a) ANZS (b) DQCV (c) CPBU (d) UBPC
- 11.If BALL is written as LLAB, how is DESK written in the same code? (a) EFTL (b) LTFE (c) JRDC (d) KSED
- 12.If LAMP is written as OZNK, how is SUN written in the same code? (a) TVO (b) HFM (c) IGN (d) GEL
- 13.If SUN is written as OVT, how is NEST written in the same code? (a) SRDM (b) TSEN (c) OFTU (d) UTFO
- 14.If WIND is written as DNIW, how is KITE written in the same code? (a) LJUF (b) DSHJ (c) FUJL (d) ETIK
- 15.If DOG is written as EPH, how is BOAT written in the same code? (a) UBPC (b) CPBU (c) ANZS (d) DQCV
- 16.If DRUM is written as CQTL, how is WIND written in the same code? (a) UGLB (b) XJOE (c) WIND (d) VHMC
- 17.If KITE is written as NLWH, how is COLD written in the same code? (a) EQNF (b) GSPH (c) ZLIA (d) FROG
- 18.If WIND is written as VHMC, how is LAMP written in the same code? (a) MBNQ (b) JYKN (c) KZLO (d) LAMP
- 19.If MOON is written as PQQO, how is WIND written in the same code? (a) YKPF (b) FPKY (c) BLGU (d) DNIW
- 20.If MILK is written as OKNM, how is PEN written in the same code? (a) QFO (b) RGP (c) NCL (d) SHQ
- 21.If LAMP is written as ROCN, how is RAIN written in the same code? (a) NIAR (b) PKCT (c) LGYP (d) TCKP
- 22.If GOLD is written as DLOG, how is DESK written in the same code? (a) JRDC (b) LTFE (c) EFTL (d) KSED
- 23.If BOOK is written as YLLP, how is WIND written in the same code? (a) CQLV (b) XJOE (c) ESNX (d) DRMW
- 24.If CAT is written as TAC, how is COLD written in the same code? (a) DPME (b) DLOC (c) CKNB (d) EMPD
- 25.If NEST is written as OFTU, how is TREE written in the same code? (a) FFSU (b) USFF (c) SQDD (d) VTGG
- 26.If PEN is written as OFQ, how is MILK written in the same code? (a) LMJN (b) KLIM (c) JKHL (d) NJML
- 27.If BALL is written as YZOO, how is PEN written in the same code? (a) KVM (b) JUL (c) LWN (d) QFO
- 28.If WIND is written as UGLB, how is STAR written in the same code? (a) PQXO (b) UVCT (c) QRYP (d) RSZQ
- 29.If COLD is written as FNQE, how is SUN written in the same code? (a) NUS (b) UWP (c) PWU (d) LSQ
- 30.If DOG is written as WLT, how is BOAT written in the same code? (a) CPBU (b) XKYF (c) ZMAH (d) YLZG
- 31.If GOLD is written as DLOG, how is KITE written in the same code? (a) FUJL (b) DSHJ (c) ETIK (d) LJUF
- 32.If MOON is written as NLLM, how is PARK written in the same code? (a) JYHO (b) QBSL (c) KZIP (d) LAJQ
- 33.If BOAT is written as UBPC, how is KITE written in the same code? (a) FUJL (b) ETIK (c) DSHJ (d) LJUF
- 34.If MILK is written as PLON, how is FROG written in the same code? (a) HTQI (b) IURJ (c) COLD (d) JVSK
- 35.If NEST is written as LCQR, how is KITE written in the same code? (a) JHSD (b) HFQB (c) MKVG (d) IGRC
- 36.If RAIN is written as OJBS, how is COLD written in the same code? (a) DPME (b) DLOC (c) CKNB (d) EMPD
- 37.If JUMP is written as ITLO, how is WIND written in the same code? (a) WIND (b) XJOE (c) UGLB (d) VHMC
- 38.If FISH is written as HSIF, how is LAMP written in the same code? (a) PMAL (b) MBNQ (c) OLZK (d) QNBM
- 39.If NEST is written as MVHG, how is CAT written in the same code? (a) XZG (b) DBU (c) YAH (d) WYF
- 40.If DESK is written as EFTL, how is KITE written in the same code? (a) FUJL (b) MKVG (c) JHSD (d) LJUF
Answer key
- DLOG
- EHRG
- VHMC
- WIFN
- EOBI
- NNGD
- ITJG
- YLZG
- RATS
- CPBU
- KSED
- HFM
- UTFO
- ETIK
- CPBU
- VHMC
- FROG
- KZLO
- FPKY
- RGP
- PKCT
- KSED
- DRMW
- DLOC
- USFF
- LMJN
- KVM
- QRYP
- PWU
- YLZG
- ETIK
- KZIP
- FUJL
- IURJ
- IGRC
- EMPD
- VHMC
- PMAL
- XZG
- LJUF
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