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 KVM, how is FROG written in the same code? (a) UILT (b) THKS (c) VJMU (d) GSPH
- 2.If PEN is written as RGP, how is DOG written in the same code? (a) BME (b) GRJ (c) FQI (d) EPH
- 3.If TOYS is written as RXNS, how is DESK written in the same code? (a) JRDC (b) CDRJ (c) KSED (d) LTFE
- 4.If CAT is written as TAC, how is LAMP written in the same code? (a) QNBM (b) PMAL (c) OLZK (d) MBNQ
- 5.If MILK is written as KGJI, how is CAT written in the same code? (a) BZS (b) ECV (c) AYR (d) ZXQ
- 6.If LAMP is written as KZLO, how is HAND written in the same code? (a) FYLB (b) HAND (c) GZMC (d) IBOE
- 7.If LAMP is written as OZNK, how is KITE written in the same code? (a) PRGV (b) LJUF (c) QSHW (d) OQFU
- 8.If CAT is written as TAC, how is JUMP written in the same code? (a) PMUJ (b) QNVK (c) OLTI (d) KVNQ
- 9.If SHIP is written as PIHS, how is PEN written in the same code? (a) QFO (b) NEP (c) MDO (d) OFQ
- 10.If DESK is written as WVHP, how is FISH written in the same code? (a) URHS (b) GJTI (c) TQGR (d) VSIT
- 11.If MOON is written as PQQO, how is RAIN written in the same code? (a) TCKP (b) LGYP (c) PKCT (d) NIAR
- 12.If BOAT is written as YLZG, how is BALL written in the same code? (a) CBMM (b) ZAPP (c) YZOO (d) XYNN
- 13.If FROG is written as HTQI, how is CAT written in the same code? (a) FDW (b) DBU (c) AYR (d) ECV
- 14.If TREE is written as GIVV, how is CAKE written in the same code? (a) YAQW (b) XZPV (c) WYOU (d) DBLF
- 15.If COLD is written as FNQE, how is DOG written in the same code? (a) FQI (b) IQF (c) GOD (d) EMB
- 16.If STAR is written as HGZI, how is BOAT written in the same code? (a) CPBU (b) ZMAH (c) XKYF (d) YLZG
- 17.If COLD is written as DLOC, how is BOOK written in the same code? (a) LPPC (b) CPPL (c) KOOB (d) JNNA
- 18.If LAMP is written as ROCN, how is FROG written in the same code? (a) EMPD (b) GORF (c) IQTH (d) HTQI
- 19.If STAR is written as HGZI, how is GOLD written in the same code? (a) SKNV (b) HPME (c) UMPX (d) TLOW
- 20.If COLD is written as EMPD, how is FISH written in the same code? (a) ITJG (b) GJTI (c) GRHE (d) HSIF
- 21.If GOLD is written as DLOG, how is KITE written in the same code? (a) FUJL (b) DSHJ (c) LJUF (d) ETIK
- 22.If CAT is written as XZG, how is GOLD written in the same code? (a) SKNV (b) TLOW (c) HPME (d) UMPX
- 23.If WIND is written as ZLQG, how is LION written in the same code? (a) PMSR (b) OLRQ (c) NKQP (d) IFLK
- 24.If PARK is written as MTCR, how is FISH written in the same code? (a) JUKH (b) FQGD (c) HKUJ (d) HSIF
- 25.If DRUM is written as WIFN, how is FISH written in the same code? (a) URHS (b) GJTI (c) VSIT (d) TQGR
- 26.If BELL is written as DGNN, how is COLD written in the same code? (a) FROG (b) DPME (c) AMJB (d) EQNF
- 27.If TREE is written as GIVV, how is HAND written in the same code? (a) IBOE (b) TANX (c) SZMW (d) RYLV
- 28.If DESK is written as LTFE, how is BALL written in the same code? (a) KKZA (b) MMBC (c) LLAB (d) CBMM
- 29.If TREE is written as USFF, how is NEST written in the same code? (a) MDRS (b) UTFO (c) PGUV (d) OFTU
- 30.If SUN is written as RTM, how is COLD written in the same code? (a) DPME (b) BNKC (c) AMJB (d) COLD
- 31.If SHIP is written as TIJQ, how is LAMP written in the same code? (a) MBNQ (b) QNBM (c) NCOR (d) KZLO
- 32.If FISH is written as GRHE, how is PARK written in the same code? (a) KRAP (b) OZQJ (c) LSBQ (d) JQZO
- 33.If TREE is written as SQDD, how is SUN written in the same code? (a) QSL (b) SUN (c) TVO (d) RTM
- 34.If CAKE is written as XZPV, how is LION written in the same code? (a) ORLM (b) MJPO (c) NQKL (d) PSMN
- 35.If TREE is written as EERT, how is KITE written in the same code? (a) FUJL (b) LJUF (c) ETIK (d) DSHJ
- 36.If DRUM is written as MURD, how is MILK written in the same code? (a) KLIM (b) JKHL (c) LMJN (d) NJML
- 37.If LION is written as NOIL, how is PEN written in the same code? (a) QFO (b) MDO (c) OFQ (d) NEP
- 38.If CAT is written as TAC, how is PARK written in the same code? (a) QBSL (b) JQZO (c) KRAP (d) LSBQ
- 39.If SHIP is written as QFGN, how is TOYS written in the same code? (a) RMWQ (b) QLVP (c) VQAU (d) SNXR
- 40.If WIND is written as XJOE, how is CAT written in the same code? (a) ECV (b) BZS (c) UBD (d) DBU
Answer key
- UILT
- FQI
- JRDC
- PMAL
- AYR
- GZMC
- PRGV
- PMUJ
- NEP
- URHS
- PKCT
- YZOO
- ECV
- XZPV
- IQF
- YLZG
- KOOB
- IQTH
- TLOW
- ITJG
- ETIK
- TLOW
- OLRQ
- JUKH
- URHS
- EQNF
- SZMW
- MMBC
- OFTU
- BNKC
- MBNQ
- JQZO
- RTM
- ORLM
- ETIK
- KLIM
- NEP
- KRAP
- RMWQ
- DBU
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