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 HPSG, how is TREE written in the same code? (a) DDQS (b) EERT (c) FFSU (d) USFF
- 2.If NEST is written as UTFO, how is BALL written in the same code? (a) CBMM (b) LLAB (c) MMBC (d) KKZA
- 3.If BELL is written as YVOO, how is BOAT written in the same code? (a) YLZG (b) CPBU (c) XKYF (d) ZMAH
- 4.If PEN is written as MDO, how is TREE written in the same code? (a) EERT (b) SQDD (c) FFSU (d) DDQS
- 5.If BELL is written as ADKK, how is SUN written in the same code? (a) SUN (b) QSL (c) RTM (d) TVO
- 6.If CAKE is written as EKAC, how is BELL written in the same code? (a) KKDA (b) LLEB (c) CFMM (d) MMFC
- 7.If DRUM is written as WIFN, how is CAKE written in the same code? (a) WYOU (b) YAQW (c) DBLF (d) XZPV
- 8.If BALL is written as NNCD, how is PEN written in the same code? (a) NEP (b) LCN (c) PGR (d) RGP
- 9.If CAT is written as XZG, how is MOON written in the same code? (a) OMMN (b) MKKL (c) NPPO (d) NLLM
- 10.If NEST is written as MDRS, how is BALL written in the same code? (a) BALL (b) CBMM (c) AZKK (d) ZYJJ
- 11.If SUN is written as MTR, how is LION written in the same code? (a) MNHK (b) NOIL (c) OPJM (d) KHNM
- 12.If TOYS is written as GLBH, how is GOLD written in the same code? (a) HPME (b) UMPX (c) TLOW (d) SKNV
- 13.If JUMP is written as OLTI, how is LAMP written in the same code? (a) PMAL (b) OLZK (c) QNBM (d) KZLO
- 14.If SUN is written as OVT, how is PARK written in the same code? (a) JQZO (b) KRAP (c) LSBQ (d) QBSL
- 15.If COLD is written as DLOC, how is CAT written in the same code? (a) UBD (b) TAC (c) DBU (d) SZB
- 16.If BELL is written as LLEB, how is BALL written in the same code? (a) MMBC (b) KKZA (c) LLAB (d) CBMM
- 17.If RAIN is written as MHZQ, how is KITE written in the same code? (a) ETIK (b) JHSD (c) DSHJ (d) FUJL
- 18.If BOAT is written as SZNA, how is KITE written in the same code? (a) DSHJ (b) ETIK (c) JHSD (d) FUJL
- 19.If JUMP is written as QFNK, how is RAIN written in the same code? (a) HYQL (b) IZRM (c) JASN (d) SBJO
- 20.If WIND is written as XJOE, how is SUN written in the same code? (a) UWP (b) RTM (c) OVT (d) TVO
- 21.If SHIP is written as HSRK, how is LAMP written in the same code? (a) PAOL (b) NYMJ (c) OZNK (d) MBNQ
- 22.If HAND is written as DNAH, how is BOAT written in the same code? (a) UBPC (b) CPBU (c) TAOB (d) SZNA
- 23.If CAT is written as XZG, how is PEN written in the same code? (a) LWN (b) JUL (c) QFO (d) KVM
- 24.If BALL is written as YZOO, how is DRUM written in the same code? (a) ESVN (b) XJGO (c) WIFN (d) VHEM
- 25.If DESK is written as EFTL, how is CAT written in the same code? (a) BZS (b) UBD (c) ECV (d) DBU
- 26.If CAKE is written as EKAC, how is FISH written in the same code? (a) HSIF (b) ITJG (c) GJTI (d) GRHE
- 27.If LION is written as MNHK, how is WIND written in the same code? (a) CMHV (b) VHMC (c) DNIW (d) EOJX
- 28.If DOG is written as WLT, how is KITE written in the same code? (a) QSHW (b) OQFU (c) PRGV (d) LJUF
- 29.If TREE is written as EERT, how is MILK written in the same code? (a) KLIM (b) NJML (c) JKHL (d) LMJN
- 30.If RAIN is written as IZRM, how is BOOK written in the same code? (a) ZMMQ (b) XKKO (c) CPPL (d) YLLP
- 31.If TREE is written as EERT, how is MOON written in the same code? (a) NPPO (b) NOOM (c) MNNL (d) OPPN
- 32.If LION is written as PQKN, how is KITE written in the same code? (a) MKVG (b) GVKM (c) ETIK (d) CRGI
- 33.If TREE is written as FFSU, how is SHIP written in the same code? (a) QJIT (b) OHGR (c) PIHS (d) TIJQ
- 34.If TOYS is written as UPZT, how is MILK written in the same code? (a) OKNM (b) LHKJ (c) LMJN (d) NJML
- 35.If STAR is written as VWDU, how is MILK written in the same code? (a) JFIH (b) QMPO (c) PLON (d) OKNM
- 36.If DOG is written as EPH, how is TOYS written in the same code? (a) VQAU (b) SNXR (c) TZPU (d) UPZT
- 37.If RAIN is written as PKCT, how is DRUM written in the same code? (a) FTWO (b) MURD (c) KSPB (d) OWTF
- 38.If PEN is written as NCL, how is DRUM written in the same code? (a) BPSK (b) CQTL (c) AORJ (d) FTWO
- 39.If TREE is written as RPCC, how is BOOK written in the same code? (a) DQQM (b) ZMMI (c) ANNJ (d) YLLH
- 40.If MILK is written as MNKO, how is TOYS written in the same code? (a) QWMR (b) UAQV (c) VQAU (d) SYOT
Answer key
- FFSU
- MMBC
- YLZG
- DDQS
- RTM
- LLEB
- XZPV
- PGR
- NLLM
- AZKK
- MNHK
- TLOW
- OLZK
- LSBQ
- TAC
- LLAB
- DSHJ
- DSHJ
- IZRM
- TVO
- OZNK
- TAOB
- KVM
- WIFN
- DBU
- HSIF
- CMHV
- PRGV
- KLIM
- YLLP
- NOOM
- GVKM
- QJIT
- NJML
- PLON
- UPZT
- OWTF
- BPSK
- ZMMI
- UAQV
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