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 DESK is written as MUGF, how is TREE written in the same code? (a) VTGG (b) EERT (c) CCPR (d) GGTV
- 2.If FROG is written as IURJ, how is CAKE written in the same code? (a) FDNH (b) ZXHB (c) ECMG (d) GEOI
- 3.If GOLD is written as JROG, how is PARK written in the same code? (a) TEVO (b) RCTM (c) SDUN (d) MXOH
- 4.If HAND is written as JCPF, how is GOLD written in the same code? (a) IQNF (b) HPME (c) EMJB (d) JROG
- 5.If CAT is written as TAC, how is SUN written in the same code? (a) OVT (b) MTR (c) TVO (d) NUS
- 6.If SUN is written as HFM, how is BOAT written in the same code? (a) ZMAH (b) YLZG (c) XKYF (d) CPBU
- 7.If STAR is written as TCVU, how is KITE written in the same code? (a) CRGI (b) GVKM (c) MKVG (d) ETIK
- 8.If PARK is written as MTCR, how is BALL written in the same code? (a) LLAB (b) NNCD (c) JJYZ (d) DCNN
- 9.If LAMP is written as OLZK, how is NEST written in the same code? (a) UTFO (b) TSEN (c) MDRS (d) SRDM
- 10.If DRUM is written as LTQC, how is BOOK written in the same code? (a) KOOB (b) LPPC (c) ANNJ (d) JNNA
- 11.If KITE is written as NLWH, how is GOLD written in the same code? (a) KSPH (b) JROG (c) IQNF (d) DLIA
- 12.If PARK is written as MTCR, how is BELL written in the same code? (a) DGNN (b) LLEB (c) NNGD (d) JJCZ
- 13.If LION is written as NOIL, how is COLD written in the same code? (a) DLOC (b) DPME (c) CKNB (d) EMPD
- 14.If TREE is written as SQDD, how is BELL written in the same code? (a) ZCJJ (b) CFMM (c) BELL (d) ADKK
- 15.If DRUM is written as NVSE, how is NEST written in the same code? (a) OFTU (b) UTFO (c) TSEN (d) SRDM
- 16.If BELL is written as KKDA, how is BALL written in the same code? (a) MMBC (b) AZKK (c) LLAB (d) KKZA
- 17.If BOOK is written as KOOB, how is PEN written in the same code? (a) QFO (b) NEP (c) OFQ (d) MDO
- 18.If DOG is written as FQI, how is BOAT written in the same code? (a) ZMYR (b) DQCV (c) ERDW (d) CPBU
- 19.If CAT is written as UBD, how is DOG written in the same code? (a) GOD (b) EPH (c) FNC (d) HPE
- 20.If PEN is written as NEP, how is STAR written in the same code? (a) SBUT (b) RATS (c) TUBS (d) QZSR
- 21.If FROG is written as GORF, how is TREE written in the same code? (a) USFF (b) EERT (c) DDQS (d) FFSU
- 22.If RAIN is written as OJBS, how is LAMP written in the same code? (a) PMAL (b) MBNQ (c) OLZK (d) QNBM
- 23.If FROG is written as IQTH, how is FISH written in the same code? (a) JUKH (b) HKUJ (c) HSIF (d) FQGD
- 24.If BOAT is written as TAOB, how is HAND written in the same code? (a) IBOE (b) DNAH (c) CMZG (d) EOBI
- 25.If TREE is written as FFSU, how is DESK written in the same code? (a) LTFE (b) JRDC (c) EFTL (d) KSED
- 26.If PEN is written as NEP, how is KITE written in the same code? (a) DSHJ (b) ETIK (c) LJUF (d) FUJL
- 27.If LION is written as MNHK, how is MOON written in the same code? (a) MNNL (b) NOOM (c) OPPN (d) LNNM
- 28.If GOLD is written as FNKC, how is SHIP written in the same code? (a) TIJQ (b) RGHO (c) SHIP (d) QFGN
- 29.If DRUM is written as LTQC, how is JUMP written in the same code? (a) QNVK (b) ITLO (c) PMUJ (d) OLTI
- 30.If JUMP is written as PMUJ, how is RAIN written in the same code? (a) MHZQ (b) SBJO (c) OJBS (d) NIAR
- 31.If BOAT is written as TAOB, how is MOON written in the same code? (a) NPPO (b) OPPN (c) NOOM (d) MNNL
- 32.If DRUM is written as MURD, how is CAT written in the same code? (a) SZB (b) UBD (c) DBU (d) TAC
- 33.If COLD is written as AMJB, how is GOLD written in the same code? (a) DLIA (b) EMJB (c) FNKC (d) IQNF
- 34.If BOOK is written as KOOB, how is DOG written in the same code? (a) FNC (b) HPE (c) GOD (d) EPH
- 35.If BOOK is written as YLLP, how is JUMP written in the same code? (a) KVNQ (b) PEMJ (c) QFNK (d) RGOL
- 36.If LAMP is written as OZNK, how is PARK written in the same code? (a) KZIP (b) QBSL (c) LAJQ (d) JYHO
- 37.If BALL is written as YZOO, how is LION written in the same code? (a) MJPO (b) NQKL (c) ORLM (d) PSMN
- 38.If LION is written as ORLM, how is PARK written in the same code? (a) JYHO (b) QBSL (c) LAJQ (d) KZIP
- 39.If NEST is written as MVHG, how is LAMP written in the same code? (a) NYMJ (b) OZNK (c) MBNQ (d) PAOL
- 40.If FROG is written as UILT, how is CAT written in the same code? (a) WYF (b) DBU (c) YAH (d) XZG
Answer key
- GGTV
- FDNH
- SDUN
- IQNF
- NUS
- YLZG
- GVKM
- NNCD
- SRDM
- JNNA
- JROG
- NNGD
- DLOC
- ADKK
- UTFO
- KKZA
- NEP
- DQCV
- HPE
- RATS
- EERT
- QNBM
- JUKH
- DNAH
- LTFE
- ETIK
- MNNL
- RGHO
- OLTI
- NIAR
- NOOM
- TAC
- EMJB
- GOD
- QFNK
- KZIP
- ORLM
- KZIP
- OZNK
- XZG
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