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 NEST is written as MVHG, how is FISH written in the same code? (a) TQGR (b) GJTI (c) URHS (d) VSIT
- 2.If STAR is written as RATS, how is CAKE written in the same code? (a) FLBD (b) DBLF (c) DJZB (d) EKAC
- 3.If CAT is written as XZG, how is CAKE written in the same code? (a) XZPV (b) YAQW (c) WYOU (d) DBLF
- 4.If FROG is written as DPME, how is DESK written in the same code? (a) FGUM (b) ABPH (c) BCQI (d) CDRJ
- 5.If MILK is written as KLIM, how is DOG written in the same code? (a) FNC (b) GOD (c) EPH (d) HPE
- 6.If BELL is written as LLEB, how is STAR written in the same code? (a) QZSR (b) TUBS (c) RATS (d) SBUT
- 7.If GOLD is written as TLOW, how is KITE written in the same code? (a) LJUF (b) OQFU (c) QSHW (d) PRGV
- 8.If BOAT is written as YLZG, how is SUN written in the same code? (a) HFM (b) GEL (c) IGN (d) TVO
- 9.If CAT is written as XZG, how is KITE written in the same code? (a) QSHW (b) LJUF (c) OQFU (d) PRGV
- 10.If FISH is written as HSIF, how is BELL written in the same code? (a) KKDA (b) CFMM (c) MMFC (d) LLEB
- 11.If KITE is written as NLWH, how is LION written in the same code? (a) PMSR (b) NKQP (c) OLRQ (d) IFLK
- 12.If GOLD is written as IQNF, how is NEST written in the same code? (a) LCQR (b) OFTU (c) PGUV (d) QHVW
- 13.If JUMP is written as QFNK, how is CAT written in the same code? (a) DBU (b) WYF (c) YAH (d) XZG
- 14.If COLD is written as BNKC, how is DRUM written in the same code? (a) BPSK (b) CQTL (c) DRUM (d) ESVN
- 15.If BELL is written as YVOO, how is LAMP written in the same code? (a) PAOL (b) MBNQ (c) NYMJ (d) OZNK
- 16.If BALL is written as MMBC, how is DESK written in the same code? (a) LTFE (b) KSED (c) JRDC (d) EFTL
- 17.If SHIP is written as UJKR, how is NEST written in the same code? (a) LCQR (b) PGUV (c) OFTU (d) QHVW
- 18.If BALL is written as CBMM, how is MILK written in the same code? (a) LMJN (b) OKNM (c) NJML (d) LHKJ
- 19.If DRUM is written as MURD, how is MILK written in the same code? (a) LMJN (b) NJML (c) KLIM (d) JKHL
- 20.If BELL is written as MMFC, how is CAKE written in the same code? (a) DBLF (b) FLBD (c) EKAC (d) DJZB
- 21.If TOYS is written as SYOT, how is TREE written in the same code? (a) FFSU (b) USFF (c) DDQS (d) EERT
- 22.If TREE is written as EERT, how is FROG written in the same code? (a) GSPH (b) FNQE (c) GORF (d) HPSG
- 23.If FISH is written as HSIF, how is RAIN written in the same code? (a) NIAR (b) MHZQ (c) OJBS (d) SBJO
- 24.If JUMP is written as LWOR, how is SHIP written in the same code? (a) TIJQ (b) VKLS (c) UJKR (d) QFGN
- 25.If FISH is written as URHS, how is DRUM written in the same code? (a) WIFN (b) ESVN (c) XJGO (d) VHEM
- 26.If DOG is written as WLT, how is DRUM written in the same code? (a) XJGO (b) ESVN (c) WIFN (d) VHEM
- 27.If DOG is written as WLT, how is BOAT written in the same code? (a) CPBU (b) YLZG (c) ZMAH (d) XKYF
- 28.If BALL is written as MMBC, how is WIND written in the same code? (a) XJOE (b) CMHV (c) EOJX (d) DNIW
- 29.If PEN is written as ODM, how is KITE written in the same code? (a) KITE (b) LJUF (c) IGRC (d) JHSD
- 30.If TOYS is written as GLBH, how is MOON written in the same code? (a) OMMN (b) MKKL (c) NLLM (d) NPPO
- 31.If RAIN is written as SBJO, how is DRUM written in the same code? (a) NVSE (b) ESVN (c) FTWO (d) CQTL
- 32.If BOOK is written as CPPL, how is BELL written in the same code? (a) ADKK (b) DGNN (c) CFMM (d) MMFC
- 33.If KITE is written as GVKM, how is DESK written in the same code? (a) IQCB (b) FGUM (c) KSED (d) MUGF
- 34.If FISH is written as EHRG, how is BALL written in the same code? (a) ZYJJ (b) BALL (c) CBMM (d) AZKK
- 35.If LION is written as NOIL, how is BALL written in the same code? (a) KKZA (b) CBMM (c) LLAB (d) MMBC
- 36.If PARK is written as KZIP, how is CAT written in the same code? (a) YAH (b) XZG (c) DBU (d) WYF
- 37.If MOON is written as NPPO, how is FISH written in the same code? (a) GJTI (b) ITJG (c) EHRG (d) HKUJ
- 38.If DESK is written as KSED, how is JUMP written in the same code? (a) OLTI (b) PMUJ (c) QNVK (d) KVNQ
- 39.If NEST is written as MVHG, how is PEN written in the same code? (a) JUL (b) KVM (c) QFO (d) LWN
- 40.If GOLD is written as DLOG, how is BOAT written in the same code? (a) CPBU (b) UBPC (c) TAOB (d) SZNA
Answer key
- URHS
- EKAC
- XZPV
- BCQI
- GOD
- RATS
- PRGV
- HFM
- PRGV
- LLEB
- OLRQ
- PGUV
- XZG
- CQTL
- OZNK
- LTFE
- PGUV
- NJML
- KLIM
- FLBD
- EERT
- GORF
- NIAR
- UJKR
- WIFN
- WIFN
- YLZG
- EOJX
- JHSD
- NLLM
- ESVN
- CFMM
- MUGF
- AZKK
- LLAB
- XZG
- GJTI
- PMUJ
- KVM
- TAOB
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