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 JKHL, how is BOAT written in the same code? (a) TAOB (b) ANZS (c) SZNA (d) UBPC
- 2.If STAR is written as HGZI, how is COLD written in the same code? (a) XLOW (b) WKNV (c) YMPX (d) DPME
- 3.If GOLD is written as EMPH, how is SHIP written in the same code? (a) TIJQ (b) OHGR (c) PIHS (d) QJIT
- 4.If PEN is written as SHQ, how is TREE written in the same code? (a) XVII (b) WUHH (c) VTGG (d) QOBB
- 5.If CAKE is written as XZPV, how is DRUM written in the same code? (a) XJGO (b) WIFN (c) ESVN (d) VHEM
- 6.If PARK is written as LSBQ, how is COLD written in the same code? (a) CKNB (b) EMPD (c) DPME (d) DLOC
- 7.If GOLD is written as IQNF, how is FISH written in the same code? (a) ILVK (b) DGQF (c) GJTI (d) HKUJ
- 8.If BELL is written as CFMM, how is RAIN written in the same code? (a) TCKP (b) OJBS (c) SBJO (d) QZHM
- 9.If GOLD is written as EMPH, how is BOOK written in the same code? (a) LPPC (b) CPPL (c) KOOB (d) JNNA
- 10.If CAT is written as DBU, how is SHIP written in the same code? (a) RGHO (b) QJIT (c) UJKR (d) TIJQ
- 11.If BOOK is written as CPPL, how is MILK written in the same code? (a) OKNM (b) LHKJ (c) NJML (d) LMJN
- 12.If PEN is written as NEP, how is LAMP written in the same code? (a) MBNQ (b) OLZK (c) PMAL (d) QNBM
- 13.If LAMP is written as NCOR, how is CAKE written in the same code? (a) DBLF (b) FDNH (c) ECMG (d) AYIC
- 14.If FROG is written as GORF, how is BALL written in the same code? (a) CBMM (b) KKZA (c) MMBC (d) LLAB
- 15.If JUMP is written as ROWL, how is PARK written in the same code? (a) KRAP (b) IPYN (c) MTCR (d) RCTM
- 16.If PARK is written as MTCR, how is BELL written in the same code? (a) DGNN (b) LLEB (c) JJCZ (d) NNGD
- 17.If LION is written as OPJM, how is DOG written in the same code? (a) EPH (b) GOD (c) FNC (d) HPE
- 18.If PEN is written as KVM, how is FROG written in the same code? (a) GSPH (b) UILT (c) THKS (d) VJMU
- 19.If NEST is written as VUGP, how is DRUM written in the same code? (a) KSPB (b) MURD (c) OWTF (d) FTWO
- 20.If PARK is written as RCTM, how is JUMP written in the same code? (a) LWOR (b) MXPS (c) HSKN (d) KVNQ
- 21.If MOON is written as OQQP, how is KITE written in the same code? (a) IGRC (b) NLWH (c) LJUF (d) MKVG
- 22.If GOLD is written as EMPH, how is STAR written in the same code? (a) RATS (b) QZSR (c) TUBS (d) SBUT
- 23.If FISH is written as ITJG, how is CAKE written in the same code? (a) FLBD (b) DJZB (c) DBLF (d) EKAC
- 24.If MILK is written as NROP, how is COLD written in the same code? (a) DPME (b) YMPX (c) WKNV (d) XLOW
- 25.If CAT is written as BZS, how is FISH written in the same code? (a) GJTI (b) FISH (c) DGQF (d) EHRG
- 26.If PEN is written as KVM, how is KITE written in the same code? (a) PRGV (b) QSHW (c) OQFU (d) LJUF
- 27.If CAT is written as XZG, how is KITE written in the same code? (a) OQFU (b) QSHW (c) PRGV (d) LJUF
- 28.If LION is written as NKQP, how is NEST written in the same code? (a) PGUV (b) LCQR (c) QHVW (d) OFTU
- 29.If MILK is written as KGJI, how is DOG written in the same code? (a) FQI (b) ALD (c) CNF (d) BME
- 30.If GOLD is written as TLOW, how is DESK written in the same code? (a) EFTL (b) VUGO (c) XWIQ (d) WVHP
- 31.If FROG is written as UILT, how is JUMP written in the same code? (a) QFNK (b) PEMJ (c) KVNQ (d) RGOL
- 32.If FROG is written as UILT, how is PARK written in the same code? (a) JYHO (b) QBSL (c) LAJQ (d) KZIP
- 33.If MOON is written as NLLM, how is RAIN written in the same code? (a) SBJO (b) JASN (c) IZRM (d) HYQL
- 34.If TOYS is written as UAQV, how is GOLD written in the same code? (a) FNQI (b) BJME (c) DLOG (d) IQNF
- 35.If TREE is written as WUHH, how is BOAT written in the same code? (a) FSEX (b) DQCV (c) YLXQ (d) ERDW
- 36.If BELL is written as DGNN, how is COLD written in the same code? (a) FROG (b) DPME (c) EQNF (d) AMJB
- 37.If CAT is written as FDW, how is TOYS written in the same code? (a) VQAU (b) QLVP (c) XSCW (d) WRBV
- 38.If LAMP is written as OLZK, how is TOYS written in the same code? (a) SNXR (b) TZPU (c) SYOT (d) RXNS
- 39.If FROG is written as HTQI, how is DOG written in the same code? (a) GRJ (b) FQI (c) BME (d) EPH
- 40.If LION is written as NOIL, how is PEN written in the same code? (a) OFQ (b) QFO (c) NEP (d) MDO
Answer key
- SZNA
- XLOW
- QJIT
- WUHH
- WIFN
- EMPD
- HKUJ
- SBJO
- LPPC
- TIJQ
- NJML
- PMAL
- ECMG
- LLAB
- MTCR
- NNGD
- HPE
- UILT
- OWTF
- LWOR
- MKVG
- SBUT
- FLBD
- XLOW
- EHRG
- PRGV
- PRGV
- PGUV
- BME
- WVHP
- QFNK
- KZIP
- IZRM
- FNQI
- ERDW
- EQNF
- WRBV
- RXNS
- FQI
- NEP
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