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 ODM, how is GOLD written in the same code? (a) EMJB (b) FNKC (c) HPME (d) GOLD
- 2.If FISH is written as URHS, how is LAMP written in the same code? (a) MBNQ (b) NYMJ (c) OZNK (d) PAOL
- 3.If FROG is written as HPSG, how is BOOK written in the same code? (a) CPPL (b) JNNA (c) LPPC (d) KOOB
- 4.If HAND is written as SZMW, how is STAR written in the same code? (a) IHAJ (b) GFYH (c) TUBS (d) HGZI
- 5.If DESK is written as KSED, how is WIND written in the same code? (a) DNIW (b) CMHV (c) EOJX (d) XJOE
- 6.If BOOK is written as CPPL, how is LION written in the same code? (a) NKQP (b) OPJM (c) MJPO (d) KHNM
- 7.If JUMP is written as ROWL, how is SUN written in the same code? (a) UWP (b) LSQ (c) PWU (d) NUS
- 8.If GOLD is written as DLOG, how is PEN written in the same code? (a) NEP (b) QFO (c) OFQ (d) MDO
- 9.If MOON is written as NLLM, how is NEST written in the same code? (a) NWIH (b) OFTU (c) LUGF (d) MVHG
- 10.If SHIP is written as QFGN, how is SUN written in the same code? (a) QSL (b) RTM (c) PRK (d) UWP
- 11.If DRUM is written as ESVN, how is BOAT written in the same code? (a) DQCV (b) CPBU (c) ANZS (d) UBPC
- 12.If KITE is written as GVKM, how is MILK written in the same code? (a) OKNM (b) MNKO (c) IJGK (d) KLIM
- 13.If DESK is written as KSED, how is PARK written in the same code? (a) KRAP (b) QBSL (c) JQZO (d) LSBQ
- 14.If HAND is written as KDQG, how is TREE written in the same code? (a) XVII (b) QOBB (c) WUHH (d) VTGG
- 15.If RAIN is written as NIAR, how is SUN written in the same code? (a) OVT (b) NUS (c) TVO (d) MTR
- 16.If LAMP is written as PMAL, how is PARK written in the same code? (a) KRAP (b) QBSL (c) JQZO (d) LSBQ
- 17.If JUMP is written as OLTI, how is SHIP written in the same code? (a) QJIT (b) RGHO (c) PIHS (d) OHGR
- 18.If BOOK is written as KOOB, how is MILK written in the same code? (a) KLIM (b) LMJN (c) NJML (d) JKHL
- 19.If PARK is written as KRAP, how is SHIP written in the same code? (a) PIHS (b) QJIT (c) OHGR (d) TIJQ
- 20.If HAND is written as GZMC, how is BALL written in the same code? (a) AZKK (b) CBMM (c) ZYJJ (d) BALL
- 21.If TREE is written as FFSU, how is WIND written in the same code? (a) DNIW (b) XJOE (c) CMHV (d) EOJX
- 22.If RAIN is written as UDLQ, how is WIND written in the same code? (a) ZLQG (b) YKPF (c) TFKA (d) AMRH
- 23.If MILK is written as LMJN, how is SHIP written in the same code? (a) OHGR (b) QJIT (c) PIHS (d) TIJQ
- 24.If DRUM is written as WIFN, how is BALL written in the same code? (a) XYNN (b) ZAPP (c) YZOO (d) CBMM
- 25.If RAIN is written as NIAR, how is BALL written in the same code? (a) LLAB (b) KKZA (c) CBMM (d) MMBC
- 26.If WIND is written as ZLQG, how is FISH written in the same code? (a) JMWL (b) ILVK (c) CFPE (d) HKUJ
- 27.If NEST is written as TSEN, how is HAND written in the same code? (a) IBOE (b) DNAH (c) CMZG (d) EOBI
- 28.If TREE is written as VTGG, how is MOON written in the same code? (a) OQQP (b) KMML (c) NPPO (d) PRRQ
- 29.If COLD is written as DLOC, how is GOLD written in the same code? (a) CKNF (b) EMPH (c) DLOG (d) HPME
- 30.If DOG is written as IQF, how is BELL written in the same code? (a) JJCZ (b) NNGD (c) LLEB (d) DGNN
- 31.If LAMP is written as PMAL, how is BOAT written in the same code? (a) CPBU (b) TAOB (c) SZNA (d) UBPC
- 32.If KITE is written as ETIK, how is SHIP written in the same code? (a) TIJQ (b) OHGR (c) QJIT (d) PIHS
- 33.If DOG is written as FNC, how is DRUM written in the same code? (a) CQTL (b) NVSE (c) MURD (d) LTQC
- 34.If PEN is written as NCL, how is LION written in the same code? (a) KHNM (b) JGML (c) NKQP (d) IFLK
- 35.If PEN is written as MDO, how is TREE written in the same code? (a) EERT (b) FFSU (c) DDQS (d) SQDD
- 36.If WIND is written as VHMC, how is JUMP written in the same code? (a) HSKN (b) JUMP (c) KVNQ (d) ITLO
- 37.If PARK is written as KRAP, how is PEN written in the same code? (a) QFO (b) NEP (c) MDO (d) OFQ
- 38.If DESK is written as WVHP, how is GOLD written in the same code? (a) UMPX (b) TLOW (c) HPME (d) SKNV
- 39.If WIND is written as DRMW, how is TREE written in the same code? (a) USFF (b) HJWW (c) GIVV (d) FHUU
- 40.If CAT is written as XZG, how is SUN written in the same code? (a) TVO (b) IGN (c) GEL (d) HFM
Answer key
- FNKC
- OZNK
- LPPC
- HGZI
- DNIW
- MJPO
- PWU
- NEP
- MVHG
- QSL
- CPBU
- MNKO
- KRAP
- WUHH
- NUS
- KRAP
- OHGR
- KLIM
- PIHS
- AZKK
- EOJX
- ZLQG
- QJIT
- YZOO
- LLAB
- ILVK
- DNAH
- OQQP
- DLOG
- NNGD
- TAOB
- PIHS
- LTQC
- JGML
- DDQS
- ITLO
- NEP
- TLOW
- GIVV
- HFM
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