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 BALL is written as YZOO, how is DESK written in the same code? (a) EFTL (b) XWIQ (c) VUGO (d) WVHP
- 2.If STAR is written as RATS, how is HAND written in the same code? (a) DNAH (b) EOBI (c) CMZG (d) IBOE
- 3.If CAKE is written as DBLF, how is PARK written in the same code? (a) RCTM (b) OZQJ (c) LSBQ (d) QBSL
- 4.If NEST is written as OFTU, how is PARK written in the same code? (a) QBSL (b) LSBQ (c) RCTM (d) OZQJ
- 5.If TREE is written as USFF, how is PARK written in the same code? (a) OZQJ (b) RCTM (c) LSBQ (d) QBSL
- 6.If STAR is written as HGZI, how is KITE written in the same code? (a) QSHW (b) LJUF (c) OQFU (d) PRGV
- 7.If TOYS is written as SYOT, how is PEN written in the same code? (a) MDO (b) QFO (c) OFQ (d) NEP
- 8.If GOLD is written as TLOW, how is DRUM written in the same code? (a) ESVN (b) XJGO (c) WIFN (d) VHEM
- 9.If COLD is written as BNKC, how is FROG written in the same code? (a) FROG (b) GSPH (c) DPME (d) EQNF
- 10.If CAT is written as XZG, how is CAKE written in the same code? (a) YAQW (b) WYOU (c) DBLF (d) XZPV
- 11.If LION is written as MJPO, how is DRUM written in the same code? (a) CQTL (b) FTWO (c) ESVN (d) NVSE
- 12.If RAIN is written as PKCT, how is MOON written in the same code? (a) OQQP (b) PQQO (c) LMMK (d) NOOM
- 13.If DOG is written as WLT, how is CAKE written in the same code? (a) DBLF (b) XZPV (c) YAQW (d) WYOU
- 14.If KITE is written as PRGV, how is PEN written in the same code? (a) JUL (b) QFO (c) LWN (d) KVM
- 15.If FROG is written as GORF, how is LION written in the same code? (a) MNHK (b) OPJM (c) NOIL (d) MJPO
- 16.If SUN is written as OVT, how is DESK written in the same code? (a) JRDC (b) EFTL (c) LTFE (d) KSED
- 17.If PARK is written as RCTM, how is CAKE written in the same code? (a) AYIC (b) FDNH (c) DBLF (d) ECMG
- 18.If GOLD is written as TLOW, how is DOG written in the same code? (a) EPH (b) WLT (c) VKS (d) XMU
- 19.If FISH is written as GRHE, how is CAT written in the same code? (a) BZS (b) TAC (c) UBD (d) SZB
- 20.If DOG is written as EPH, how is LAMP written in the same code? (a) KZLO (b) NCOR (c) MBNQ (d) QNBM
- 21.If WIND is written as EOJX, how is COLD written in the same code? (a) CKNB (b) DLOC (c) DPME (d) EMPD
- 22.If TOYS is written as RMWQ, how is MILK written in the same code? (a) JFIH (b) OKNM (c) KGJI (d) LHKJ
- 23.If CAKE is written as XZPV, how is LAMP written in the same code? (a) PAOL (b) OZNK (c) MBNQ (d) NYMJ
- 24.If PARK is written as MTCR, how is TREE written in the same code? (a) EERT (b) CCPR (c) VTGG (d) GGTV
- 25.If SHIP is written as TIJQ, how is MOON written in the same code? (a) LNNM (b) OQQP (c) OPPN (d) NPPO
- 26.If LION is written as ORLM, how is GOLD written in the same code? (a) SKNV (b) HPME (c) TLOW (d) UMPX
- 27.If BOOK is written as DQQM, how is SHIP written in the same code? (a) TIJQ (b) VKLS (c) QFGN (d) UJKR
- 28.If FROG is written as HPSG, how is KITE written in the same code? (a) ETIK (b) FUJL (c) LJUF (d) DSHJ
- 29.If BALL is written as NNCD, how is FISH written in the same code? (a) HSIF (b) JUKH (c) HKUJ (d) FQGD
- 30.If CAT is written as FDW, how is COLD written in the same code? (a) GSPH (b) EQNF (c) ZLIA (d) FROG
- 31.If PARK is written as MTCR, how is CAKE written in the same code? (a) ECMG (b) CIYA (c) GMCE (d) EKAC
- 32.If TREE is written as GIVV, how is KITE written in the same code? (a) PRGV (b) LJUF (c) QSHW (d) OQFU
- 33.If HAND is written as GZMC, how is MILK written in the same code? (a) MILK (b) NJML (c) LHKJ (d) KGJI
- 34.If FISH is written as GRHE, how is JUMP written in the same code? (a) PMUJ (b) QNVK (c) ITLO (d) OLTI
- 35.If LAMP is written as ODPS, how is FISH written in the same code? (a) JMWL (b) ILVK (c) HKUJ (d) CFPE
- 36.If LION is written as ORLM, how is CAKE written in the same code? (a) WYOU (b) DBLF (c) XZPV (d) YAQW
- 37.If COLD is written as DPME, how is MILK written in the same code? (a) LMJN (b) NJML (c) OKNM (d) LHKJ
- 38.If PEN is written as MDO, how is LION written in the same code? (a) MNHK (b) KHNM (c) OPJM (d) NOIL
- 39.If HAND is written as EOBI, how is SUN written in the same code? (a) OVT (b) MTR (c) TVO (d) NUS
- 40.If TREE is written as VTGG, how is MOON written in the same code? (a) OQQP (b) KMML (c) NPPO (d) PRRQ
Answer key
- WVHP
- DNAH
- QBSL
- QBSL
- QBSL
- PRGV
- NEP
- WIFN
- EQNF
- XZPV
- ESVN
- PQQO
- XZPV
- KVM
- NOIL
- LTFE
- ECMG
- WLT
- SZB
- MBNQ
- EMPD
- KGJI
- OZNK
- GGTV
- NPPO
- TLOW
- UJKR
- FUJL
- JUKH
- FROG
- GMCE
- PRGV
- LHKJ
- OLTI
- ILVK
- XZPV
- NJML
- MNHK
- OVT
- OQQP
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