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 SUN is written as NUS, how is GOLD written in the same code? (a) CKNF (b) DLOG (c) EMPH (d) HPME
- 2.If BOAT is written as TAOB, how is MILK written in the same code? (a) JKHL (b) LMJN (c) KLIM (d) NJML
- 3.If WIND is written as FPKY, how is TREE written in the same code? (a) VTGG (b) CCPR (c) GGTV (d) EERT
- 4.If DESK is written as KSED, how is BALL written in the same code? (a) KKZA (b) MMBC (c) CBMM (d) LLAB
- 5.If BOAT is written as UBPC, how is FROG written in the same code? (a) GSPH (b) FNQE (c) HPSG (d) GORF
- 6.If FROG is written as GORF, how is HAND written in the same code? (a) IBOE (b) EOBI (c) DNAH (d) CMZG
- 7.If STAR is written as HGZI, how is MOON written in the same code? (a) NLLM (b) OMMN (c) NPPO (d) MKKL
- 8.If SUN is written as MTR, how is SHIP written in the same code? (a) RGHO (b) QJIT (c) OHGR (d) PIHS
- 9.If NEST is written as TSEN, how is PARK written in the same code? (a) LSBQ (b) QBSL (c) JQZO (d) KRAP
- 10.If TOYS is written as SNXR, how is LION written in the same code? (a) JGML (b) MJPO (c) LION (d) KHNM
- 11.If BALL is written as YZOO, how is BOOK written in the same code? (a) YLLP (b) XKKO (c) CPPL (d) ZMMQ
- 12.If DOG is written as WLT, how is COLD written in the same code? (a) WKNV (b) DPME (c) XLOW (d) YMPX
- 13.If CAKE is written as EKAC, how is BOOK written in the same code? (a) LPPC (b) CPPL (c) JNNA (d) KOOB
- 14.If FROG is written as GORF, how is BOOK written in the same code? (a) JNNA (b) CPPL (c) LPPC (d) KOOB
- 15.If LAMP is written as PMAL, how is TREE written in the same code? (a) USFF (b) DDQS (c) FFSU (d) EERT
- 16.If JUMP is written as ROWL, how is TREE written in the same code? (a) VTGG (b) GGTV (c) EERT (d) CCPR
- 17.If KITE is written as ETIK, how is LAMP written in the same code? (a) MBNQ (b) OLZK (c) PMAL (d) QNBM
- 18.If CAT is written as VCE, how is TREE written in the same code? (a) GGTV (b) CCPR (c) EERT (d) VTGG
- 19.If PEN is written as PGR, how is DRUM written in the same code? (a) MURD (b) OWTF (c) FTWO (d) KSPB
- 20.If SUN is written as NUS, how is FROG written in the same code? (a) GSPH (b) FNQE (c) GORF (d) HPSG
- 21.If BALL is written as EDOO, how is PEN written in the same code? (a) MBK (b) TIR (c) RGP (d) SHQ
- 22.If LION is written as MJPO, how is GOLD written in the same code? (a) HPME (b) IQNF (c) EMPH (d) FNKC
- 23.If MOON is written as OPPN, how is BALL written in the same code? (a) CBMM (b) KKZA (c) LLAB (d) MMBC
- 24.If MOON is written as OPPN, how is BELL written in the same code? (a) LLEB (b) CFMM (c) MMFC (d) KKDA
- 25.If TREE is written as FFSU, how is CAT written in the same code? (a) DBU (b) SZB (c) TAC (d) UBD
- 26.If SHIP is written as PIHS, how is BOOK written in the same code? (a) KOOB (b) CPPL (c) JNNA (d) LPPC
- 27.If DOG is written as BME, how is SHIP written in the same code? (a) RGHO (b) UJKR (c) PEFM (d) QFGN
- 28.If BOAT is written as CPBU, how is BALL written in the same code? (a) CBMM (b) AZKK (c) DCNN (d) MMBC
- 29.If TREE is written as GIVV, how is PEN written in the same code? (a) QFO (b) LWN (c) KVM (d) JUL
- 30.If SUN is written as HFM, how is LION written in the same code? (a) MJPO (b) NQKL (c) PSMN (d) ORLM
- 31.If MILK is written as NJML, how is LAMP written in the same code? (a) KZLO (b) NCOR (c) QNBM (d) MBNQ
- 32.If SHIP is written as RKJU, how is KITE written in the same code? (a) CRGI (b) MKVG (c) GVKM (d) ETIK
- 33.If BALL is written as YZOO, how is SHIP written in the same code? (a) ITSL (b) TIJQ (c) HSRK (d) GRQJ
- 34.If FISH is written as URHS, how is WIND written in the same code? (a) ESNX (b) CQLV (c) DRMW (d) XJOE
- 35.If BOAT is written as ERDW, how is GOLD written in the same code? (a) DLIA (b) IQNF (c) JROG (d) KSPH
- 36.If CAKE is written as EKAC, how is COLD written in the same code? (a) DPME (b) CKNB (c) DLOC (d) EMPD
- 37.If DESK is written as KSED, how is BOAT written in the same code? (a) UBPC (b) SZNA (c) CPBU (d) TAOB
- 38.If JUMP is written as LWOR, how is TREE written in the same code? (a) USFF (b) VTGG (c) RPCC (d) WUHH
- 39.If BALL is written as YZOO, how is LION written in the same code? (a) PSMN (b) NQKL (c) MJPO (d) ORLM
- 40.If SHIP is written as HSRK, how is CAT written in the same code? (a) YAH (b) WYF (c) XZG (d) DBU
Answer key
- DLOG
- KLIM
- GGTV
- LLAB
- HPSG
- DNAH
- NLLM
- OHGR
- KRAP
- KHNM
- YLLP
- XLOW
- KOOB
- KOOB
- EERT
- GGTV
- PMAL
- GGTV
- OWTF
- GORF
- SHQ
- HPME
- MMBC
- MMFC
- UBD
- KOOB
- QFGN
- CBMM
- KVM
- ORLM
- MBNQ
- GVKM
- HSRK
- DRMW
- JROG
- DLOC
- TAOB
- VTGG
- ORLM
- XZG
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