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 MILK is written as KLIM, how is LION written in the same code? (a) NOIL (b) OPJM (c) MJPO (d) MNHK
- 2.If DRUM is written as MURD, how is MILK written in the same code? (a) LMJN (b) JKHL (c) KLIM (d) NJML
- 3.If TOYS is written as SYOT, how is FROG written in the same code? (a) HPSG (b) GSPH (c) GORF (d) FNQE
- 4.If COLD is written as XLOW, how is BOAT written in the same code? (a) YLZG (b) CPBU (c) XKYF (d) ZMAH
- 5.If MOON is written as NLLM, how is JUMP written in the same code? (a) RGOL (b) PEMJ (c) QFNK (d) KVNQ
- 6.If TOYS is written as GLBH, how is PARK written in the same code? (a) JYHO (b) KZIP (c) LAJQ (d) QBSL
- 7.If KITE is written as ETIK, how is MILK written in the same code? (a) JKHL (b) KLIM (c) LMJN (d) NJML
- 8.If SUN is written as HFM, how is KITE written in the same code? (a) OQFU (b) QSHW (c) PRGV (d) LJUF
- 9.If DRUM is written as GUXP, how is WIND written in the same code? (a) AMRH (b) TFKA (c) ZLQG (d) YKPF
- 10.If RAIN is written as NIAR, how is BALL written in the same code? (a) CBMM (b) MMBC (c) KKZA (d) LLAB
- 11.If BELL is written as DGNN, how is NEST written in the same code? (a) QHVW (b) LCQR (c) OFTU (d) PGUV
- 12.If FISH is written as DGQF, how is BOAT written in the same code? (a) ANZS (b) DQCV (c) YLXQ (d) ZMYR
- 13.If COLD is written as XLOW, how is GOLD written in the same code? (a) HPME (b) SKNV (c) TLOW (d) UMPX
- 14.If GOLD is written as TLOW, how is BELL written in the same code? (a) CFMM (b) YVOO (c) XUNN (d) ZWPP
- 15.If RAIN is written as MHZQ, how is DOG written in the same code? (a) CNF (b) GOD (c) HPE (d) FNC
- 16.If DOG is written as GOD, how is TOYS written in the same code? (a) TZPU (b) SYOT (c) UPZT (d) RXNS
- 17.If COLD is written as AMJB, how is BALL written in the same code? (a) YXII (b) DCNN (c) AZKK (d) ZYJJ
- 18.If LAMP is written as MBNQ, how is RAIN written in the same code? (a) OJBS (b) QZHM (c) SBJO (d) TCKP
- 19.If JUMP is written as MXPS, how is RAIN written in the same code? (a) OXFK (b) VEMR (c) UDLQ (d) TCKP
- 20.If FROG is written as DPME, how is GOLD written in the same code? (a) DLIA (b) IQNF (c) FNKC (d) EMJB
- 21.If MOON is written as KMML, how is LAMP written in the same code? (a) IXJM (b) KZLO (c) JYKN (d) NCOR
- 22.If LION is written as KHNM, how is HAND written in the same code? (a) FYLB (b) HAND (c) IBOE (d) GZMC
- 23.If LAMP is written as NCOR, how is PEN written in the same code? (a) RGP (b) QFO (c) NCL (d) SHQ
- 24.If WIND is written as DRMW, how is COLD written in the same code? (a) XLOW (b) YMPX (c) WKNV (d) DPME
- 25.If DOG is written as GOD, how is WIND written in the same code? (a) EOJX (b) DNIW (c) XJOE (d) CMHV
- 26.If BELL is written as YVOO, how is DOG written in the same code? (a) XMU (b) VKS (c) WLT (d) EPH
- 27.If FISH is written as URHS, how is MOON written in the same code? (a) MKKL (b) NLLM (c) NPPO (d) OMMN
- 28.If DESK is written as KSED, how is BELL written in the same code? (a) MMFC (b) LLEB (c) KKDA (d) CFMM
- 29.If KITE is written as JHSD, how is LION written in the same code? (a) MJPO (b) LION (c) JGML (d) KHNM
- 30.If KITE is written as LJUF, how is FROG written in the same code? (a) HPSG (b) GSPH (c) HTQI (d) EQNF
- 31.If SHIP is written as QFGN, how is PEN written in the same code? (a) NCL (b) ODM (c) MBK (d) RGP
- 32.If TREE is written as DDQS, how is FISH written in the same code? (a) ITJG (b) EHRG (c) GRHE (d) HSIF
- 33.If LION is written as OLRQ, how is BOOK written in the same code? (a) FSSO (b) YLLH (c) ERRN (d) DQQM
- 34.If STAR is written as VWDU, how is MILK written in the same code? (a) OKNM (b) QMPO (c) JFIH (d) PLON
- 35.If HAND is written as SZMW, how is FROG written in the same code? (a) THKS (b) GSPH (c) UILT (d) VJMU
- 36.If CAKE is written as BZJD, how is HAND written in the same code? (a) HAND (b) IBOE (c) GZMC (d) FYLB
- 37.If DOG is written as FNC, how is WIND written in the same code? (a) DNIW (b) EOJX (c) VHMC (d) CMHV
- 38.If LAMP is written as OZNK, how is KITE written in the same code? (a) OQFU (b) PRGV (c) QSHW (d) LJUF
- 39.If NEST is written as VUGP, how is HAND written in the same code? (a) JCPF (b) FPCJ (c) BLYF (d) DNAH
- 40.If NEST is written as TSEN, how is BELL written in the same code? (a) LLEB (b) CFMM (c) MMFC (d) KKDA
Answer key
- NOIL
- KLIM
- GORF
- YLZG
- QFNK
- KZIP
- KLIM
- PRGV
- ZLQG
- LLAB
- PGUV
- ZMYR
- TLOW
- YVOO
- FNC
- SYOT
- ZYJJ
- SBJO
- UDLQ
- EMJB
- JYKN
- GZMC
- RGP
- XLOW
- DNIW
- WLT
- NLLM
- LLEB
- KHNM
- GSPH
- NCL
- GRHE
- ERRN
- PLON
- UILT
- GZMC
- CMHV
- PRGV
- FPCJ
- LLEB
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