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 DOG is written as IQF, how is BELL written in the same code? (a) LLEB (b) NNGD (c) JJCZ (d) DGNN
- 2.If BELL is written as LLEB, how is CAKE written in the same code? (a) DJZB (b) FLBD (c) DBLF (d) EKAC
- 3.If PARK is written as LSBQ, how is BALL written in the same code? (a) MMBC (b) LLAB (c) KKZA (d) CBMM
- 4.If TOYS is written as RXNS, how is WIND written in the same code? (a) EOJX (b) VHMC (c) DNIW (d) CMHV
- 5.If MILK is written as NROP, how is SUN written in the same code? (a) TVO (b) GEL (c) HFM (d) IGN
- 6.If SUN is written as MTR, how is DESK written in the same code? (a) KSED (b) JRDC (c) CDRJ (d) LTFE
- 7.If DESK is written as BCQI, how is MOON written in the same code? (a) KMML (b) OQQP (c) JLLK (d) LNNM
- 8.If MILK is written as KLIM, how is FROG written in the same code? (a) HPSG (b) GORF (c) FNQE (d) GSPH
- 9.If CAT is written as XZG, how is NEST written in the same code? (a) LUGF (b) MVHG (c) NWIH (d) OFTU
- 10.If CAKE is written as XZPV, how is HAND written in the same code? (a) IBOE (b) RYLV (c) TANX (d) SZMW
- 11.If WIND is written as FPKY, how is CAKE written in the same code? (a) ECMG (b) CIYA (c) EKAC (d) GMCE
- 12.If LION is written as NOIL, how is DOG written in the same code? (a) HPE (b) GOD (c) FNC (d) EPH
- 13.If PEN is written as NEP, how is BALL written in the same code? (a) MMBC (b) KKZA (c) CBMM (d) LLAB
- 14.If DOG is written as GRJ, how is NEST written in the same code? (a) PGUV (b) QHVW (c) RIWX (d) KBPQ
- 15.If FISH is written as HSIF, how is LION written in the same code? (a) NOIL (b) MJPO (c) MNHK (d) OPJM
- 16.If FISH is written as EHRG, how is BOOK written in the same code? (a) BOOK (b) CPPL (c) ANNJ (d) ZMMI
- 17.If KITE is written as LJUF, how is STAR written in the same code? (a) SBUT (b) TUBS (c) RSZQ (d) UVCT
- 18.If JUMP is written as KVNQ, how is FISH written in the same code? (a) HKUJ (b) GJTI (c) ITJG (d) EHRG
- 19.If PEN is written as RGP, how is CAKE written in the same code? (a) AYIC (b) DBLF (c) FDNH (d) ECMG
- 20.If NEST is written as TSEN, how is BOAT written in the same code? (a) TAOB (b) UBPC (c) CPBU (d) SZNA
- 21.If PEN is written as NEP, how is COLD written in the same code? (a) CKNB (b) EMPD (c) DPME (d) DLOC
- 22.If NEST is written as TSEN, how is PARK written in the same code? (a) QBSL (b) LSBQ (c) JQZO (d) KRAP
- 23.If BALL is written as NNCD, how is DRUM written in the same code? (a) KSPB (b) FTWO (c) OWTF (d) MURD
- 24.If SHIP is written as VKLS, how is DOG written in the same code? (a) HSK (b) ALD (c) GRJ (d) FQI
- 25.If CAKE is written as EKAC, how is BALL written in the same code? (a) CBMM (b) KKZA (c) LLAB (d) MMBC
- 26.If PEN is written as OFQ, how is DESK written in the same code? (a) JRDC (b) LTFE (c) KSED (d) EFTL
- 27.If TOYS is written as SYOT, how is FISH written in the same code? (a) GRHE (b) GJTI (c) ITJG (d) HSIF
- 28.If BOOK is written as CPPL, how is COLD written in the same code? (a) EMPD (b) BNKC (c) DPME (d) EQNF
- 29.If BALL is written as LLAB, how is FROG written in the same code? (a) FNQE (b) GORF (c) GSPH (d) HPSG
- 30.If NEST is written as MVHG, how is SUN written in the same code? (a) GEL (b) IGN (c) HFM (d) TVO
- 31.If BELL is written as NNGD, how is DRUM written in the same code? (a) KSPB (b) MURD (c) OWTF (d) FTWO
- 32.If SUN is written as MTR, how is RAIN written in the same code? (a) QZHM (b) NIAR (c) OJBS (d) MHZQ
- 33.If NEST is written as TSEN, how is LAMP written in the same code? (a) QNBM (b) MBNQ (c) PMAL (d) OLZK
- 34.If SHIP is written as VKLS, how is TREE written in the same code? (a) WUHH (b) XVII (c) VTGG (d) QOBB
- 35.If CAKE is written as DBLF, how is LION written in the same code? (a) OPJM (b) NKQP (c) MJPO (d) KHNM
- 36.If HAND is written as DNAH, how is CAT written in the same code? (a) SZB (b) TAC (c) UBD (d) DBU
- 37.If RAIN is written as IZRM, how is GOLD written in the same code? (a) HPME (b) UMPX (c) SKNV (d) TLOW
- 38.If RAIN is written as NIAR, how is CAT written in the same code? (a) SZB (b) UBD (c) DBU (d) TAC
- 39.If CAKE is written as EKAC, how is TOYS written in the same code? (a) RXNS (b) SYOT (c) TZPU (d) UPZT
- 40.If CAKE is written as AYIC, how is SHIP written in the same code? (a) QFGN (b) PEFM (c) RGHO (d) UJKR
Answer key
- NNGD
- EKAC
- MMBC
- CMHV
- HFM
- JRDC
- KMML
- GORF
- MVHG
- SZMW
- GMCE
- GOD
- LLAB
- QHVW
- NOIL
- ANNJ
- TUBS
- GJTI
- ECMG
- TAOB
- DLOC
- KRAP
- OWTF
- GRJ
- LLAB
- LTFE
- HSIF
- DPME
- GORF
- HFM
- OWTF
- MHZQ
- PMAL
- WUHH
- MJPO
- TAC
- TLOW
- TAC
- SYOT
- QFGN
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