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 CAT is written as VCE, how is KITE written in the same code? (a) MKVG (b) ETIK (c) CRGI (d) GVKM
- 2.If SUN is written as NUS, how is BOOK written in the same code? (a) KOOB (b) CPPL (c) LPPC (d) JNNA
- 3.If TOYS is written as SNXR, how is MILK written in the same code? (a) MILK (b) NJML (c) KGJI (d) LHKJ
- 4.If MILK is written as MNKO, how is CAKE written in the same code? (a) EKAC (b) ECMG (c) CIYA (d) GMCE
- 5.If FROG is written as UILT, how is SUN written in the same code? (a) IGN (b) TVO (c) HFM (d) GEL
- 6.If BALL is written as KKZA, how is STAR written in the same code? (a) SBUT (b) RATS (c) RSZQ (d) QZSR
- 7.If TREE is written as GIVV, how is NEST written in the same code? (a) MVHG (b) LUGF (c) OFTU (d) NWIH
- 8.If LAMP is written as ROCN, how is SUN written in the same code? (a) UWP (b) LSQ (c) PWU (d) NUS
- 9.If LION is written as NOIL, how is FROG written in the same code? (a) GSPH (b) FNQE (c) GORF (d) HPSG
- 10.If SHIP is written as PIHS, how is KITE written in the same code? (a) DSHJ (b) LJUF (c) FUJL (d) ETIK
- 11.If BALL is written as DCNN, how is MILK written in the same code? (a) OKNM (b) NJML (c) KGJI (d) PLON
- 12.If BELL is written as CFMM, how is WIND written in the same code? (a) XJOE (b) VHMC (c) EOJX (d) YKPF
- 13.If KITE is written as ETIK, how is PEN written in the same code? (a) QFO (b) OFQ (c) MDO (d) NEP
- 14.If COLD is written as EMPD, how is BOAT written in the same code? (a) TAOB (b) UBPC (c) CPBU (d) SZNA
- 15.If RAIN is written as OJBS, how is MILK written in the same code? (a) JKHL (b) NJML (c) LMJN (d) KLIM
- 16.If PEN is written as NCL, how is CAKE written in the same code? (a) ZXHB (b) ECMG (c) AYIC (d) BZJD
- 17.If BELL is written as MMFC, how is FROG written in the same code? (a) FNQE (b) GSPH (c) HPSG (d) GORF
- 18.If PARK is written as MTCR, how is LION written in the same code? (a) NOIL (b) NKQP (c) LMGJ (d) PQKN
- 19.If TOYS is written as TZPU, how is WIND written in the same code? (a) XJOE (b) CMHV (c) EOJX (d) DNIW
- 20.If KITE is written as IGRC, how is DRUM written in the same code? (a) FTWO (b) BPSK (c) CQTL (d) AORJ
- 21.If TREE is written as RPCC, how is CAKE written in the same code? (a) AYIC (b) ZXHB (c) ECMG (d) BZJD
- 22.If BOOK is written as ANNJ, how is LAMP written in the same code? (a) JYKN (b) MBNQ (c) KZLO (d) LAMP
- 23.If CAT is written as VCE, how is PARK written in the same code? (a) IPYN (b) RCTM (c) KRAP (d) MTCR
- 24.If NEST is written as SRDM, how is PEN written in the same code? (a) NEP (b) OFQ (c) ODM (d) MDO
- 25.If CAKE is written as GMCE, how is BOOK written in the same code? (a) KOOB (b) DQQM (c) IMMZ (d) MQQD
- 26.If CAT is written as TAC, how is BOOK written in the same code? (a) JNNA (b) LPPC (c) CPPL (d) KOOB
- 27.If NEST is written as TSEN, how is DESK written in the same code? (a) LTFE (b) EFTL (c) KSED (d) JRDC
- 28.If CAKE is written as XZPV, how is BALL written in the same code? (a) YZOO (b) CBMM (c) ZAPP (d) XYNN
- 29.If BOOK is written as ERRN, how is DOG written in the same code? (a) GRJ (b) HSK (c) ALD (d) FQI
- 30.If TOYS is written as GLBH, how is NEST written in the same code? (a) LUGF (b) NWIH (c) MVHG (d) OFTU
- 31.If PARK is written as QBSL, how is DRUM written in the same code? (a) FTWO (b) CQTL (c) ESVN (d) NVSE
- 32.If FISH is written as URHS, how is CAKE written in the same code? (a) XZPV (b) DBLF (c) WYOU (d) YAQW
- 33.If PEN is written as KVM, how is CAKE written in the same code? (a) DBLF (b) YAQW (c) WYOU (d) XZPV
- 34.If HAND is written as IBOE, how is LAMP written in the same code? (a) QNBM (b) MBNQ (c) KZLO (d) NCOR
- 35.If BALL is written as LLAB, how is HAND written in the same code? (a) EOBI (b) CMZG (c) IBOE (d) DNAH
- 36.If NEST is written as PGUV, how is BOOK written in the same code? (a) CPPL (b) ERRN (c) DQQM (d) ZMMI
- 37.If COLD is written as DLOC, how is FISH written in the same code? (a) HSIF (b) ITJG (c) GJTI (d) GRHE
- 38.If LION is written as MJPO, how is KITE written in the same code? (a) MKVG (b) LJUF (c) FUJL (d) JHSD
- 39.If SHIP is written as PIHS, how is TOYS written in the same code? (a) UPZT (b) RXNS (c) TZPU (d) SYOT
- 40.If DESK is written as LTFE, how is DRUM written in the same code? (a) NVSE (b) ESVN (c) LTQC (d) MURD
Answer key
- GVKM
- KOOB
- LHKJ
- GMCE
- HFM
- QZSR
- MVHG
- PWU
- GORF
- ETIK
- OKNM
- XJOE
- NEP
- UBPC
- LMJN
- AYIC
- HPSG
- PQKN
- EOJX
- BPSK
- AYIC
- KZLO
- MTCR
- MDO
- MQQD
- KOOB
- KSED
- YZOO
- GRJ
- MVHG
- ESVN
- XZPV
- XZPV
- MBNQ
- DNAH
- DQQM
- HSIF
- LJUF
- SYOT
- NVSE
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