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 TOYS is written as RMWQ, how is TREE written in the same code? (a) VTGG (b) RPCC (c) SQDD (d) QOBB
- 2.If TOYS is written as SYOT, how is COLD written in the same code? (a) DPME (b) CKNB (c) EMPD (d) DLOC
- 3.If DESK is written as WVHP, how is RAIN written in the same code? (a) SBJO (b) JASN (c) HYQL (d) IZRM
- 4.If NEST is written as LCQR, how is COLD written in the same code? (a) BNKC (b) AMJB (c) ZLIA (d) EQNF
- 5.If STAR is written as RATS, how is BOOK written in the same code? (a) LPPC (b) CPPL (c) JNNA (d) KOOB
- 6.If RAIN is written as IZRM, how is FROG written in the same code? (a) GSPH (b) THKS (c) VJMU (d) UILT
- 7.If NEST is written as MVHG, how is WIND written in the same code? (a) XJOE (b) CQLV (c) DRMW (d) ESNX
- 8.If TOYS is written as UPZT, how is CAT written in the same code? (a) ECV (b) DBU (c) UBD (d) BZS
- 9.If FISH is written as EHRG, how is DESK written in the same code? (a) CDRJ (b) DESK (c) EFTL (d) BCQI
- 10.If GOLD is written as TLOW, how is LION written in the same code? (a) MJPO (b) PSMN (c) NQKL (d) ORLM
- 11.If SUN is written as OVT, how is COLD written in the same code? (a) DLOC (b) CKNB (c) EMPD (d) DPME
- 12.If LAMP is written as OZNK, how is BOOK written in the same code? (a) CPPL (b) ZMMQ (c) XKKO (d) YLLP
- 13.If TOYS is written as SYOT, how is MILK written in the same code? (a) KLIM (b) NJML (c) LMJN (d) JKHL
- 14.If CAT is written as XZG, how is MILK written in the same code? (a) NJML (b) NROP (c) OSPQ (d) MQNO
- 15.If HAND is written as SZMW, how is DRUM written in the same code? (a) VHEM (b) XJGO (c) WIFN (d) ESVN
- 16.If LAMP is written as PMAL, how is WIND written in the same code? (a) XJOE (b) CMHV (c) EOJX (d) DNIW
- 17.If FISH is written as URHS, how is BOAT written in the same code? (a) ZMAH (b) CPBU (c) XKYF (d) YLZG
- 18.If DRUM is written as OWTF, how is BOAT written in the same code? (a) TAOB (b) DQCV (c) VCQD (d) RYMZ
- 19.If LION is written as ORLM, how is CAKE written in the same code? (a) WYOU (b) YAQW (c) XZPV (d) DBLF
- 20.If KITE is written as PRGV, how is TOYS written in the same code? (a) HMCI (b) FKAG (c) UPZT (d) GLBH
- 21.If CAT is written as SZB, how is MILK written in the same code? (a) KLIM (b) LMJN (c) LHKJ (d) JKHL
- 22.If PARK is written as KRAP, how is DOG written in the same code? (a) FNC (b) GOD (c) HPE (d) EPH
- 23.If FISH is written as GJTI, how is SHIP written in the same code? (a) TIJQ (b) UJKR (c) RGHO (d) QJIT
- 24.If STAR is written as RATS, how is DOG written in the same code? (a) FNC (b) GOD (c) HPE (d) EPH
- 25.If PEN is written as NEP, how is DOG written in the same code? (a) HPE (b) EPH (c) GOD (d) FNC
- 26.If SHIP is written as RGHO, how is LION written in the same code? (a) KHNM (b) LION (c) JGML (d) MJPO
- 27.If PEN is written as QFO, how is DOG written in the same code? (a) FQI (b) EPH (c) CNF (d) HPE
- 28.If TREE is written as EERT, how is MILK written in the same code? (a) JKHL (b) KLIM (c) LMJN (d) NJML
- 29.If BALL is written as LLAB, how is COLD written in the same code? (a) EMPD (b) DPME (c) CKNB (d) DLOC
- 30.If RAIN is written as NIAR, how is TREE written in the same code? (a) USFF (b) EERT (c) DDQS (d) FFSU
- 31.If KITE is written as DSHJ, how is TOYS written in the same code? (a) SYOT (b) TZPU (c) SNXR (d) RXNS
- 32.If RAIN is written as NIAR, how is STAR written in the same code? (a) RATS (b) SBUT (c) TUBS (d) QZSR
- 33.If PEN is written as RGP, how is STAR written in the same code? (a) QRYP (b) TUBS (c) VWDU (d) UVCT
- 34.If LION is written as MNHK, how is BOOK written in the same code? (a) KOOB (b) ANNJ (c) LPPC (d) JNNA
- 35.If RAIN is written as IZRM, how is JUMP written in the same code? (a) KVNQ (b) RGOL (c) QFNK (d) PEMJ
- 36.If WIND is written as DRMW, how is TOYS written in the same code? (a) HMCI (b) GLBH (c) FKAG (d) UPZT
- 37.If LAMP is written as NCOR, how is RAIN written in the same code? (a) PYGL (b) TCKP (c) SBJO (d) UDLQ
- 38.If TOYS is written as UPZT, how is BOOK written in the same code? (a) ANNJ (b) LPPC (c) CPPL (d) DQQM
- 39.If NEST is written as TSEN, how is BOOK written in the same code? (a) KOOB (b) JNNA (c) LPPC (d) CPPL
- 40.If LAMP is written as NCOR, how is NEST written in the same code? (a) QHVW (b) PGUV (c) OFTU (d) LCQR
Answer key
- RPCC
- DLOC
- IZRM
- AMJB
- KOOB
- UILT
- DRMW
- DBU
- CDRJ
- ORLM
- EMPD
- YLLP
- KLIM
- NROP
- WIFN
- DNIW
- YLZG
- VCQD
- XZPV
- GLBH
- JKHL
- GOD
- TIJQ
- GOD
- GOD
- KHNM
- EPH
- KLIM
- DLOC
- EERT
- RXNS
- RATS
- UVCT
- JNNA
- QFNK
- GLBH
- TCKP
- CPPL
- KOOB
- PGUV
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