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 BOAT is written as YLZG, how is MILK written in the same code? (a) NJML (b) NROP (c) OSPQ (d) MQNO
- 2.If BOOK is written as KOOB, how is CAT written in the same code? (a) UBD (b) DBU (c) TAC (d) SZB
- 3.If MILK is written as LMJN, how is CAKE written in the same code? (a) EKAC (b) DBLF (c) DJZB (d) FLBD
- 4.If BOAT is written as YLZG, how is STAR written in the same code? (a) HGZI (b) IHAJ (c) GFYH (d) TUBS
- 5.If BELL is written as DGNN, how is COLD written in the same code? (a) AMJB (b) FROG (c) DPME (d) EQNF
- 6.If GOLD is written as JROG, how is SHIP written in the same code? (a) UJKR (b) PEFM (c) WLMT (d) VKLS
- 7.If PARK is written as KZIP, how is COLD written in the same code? (a) DPME (b) YMPX (c) WKNV (d) XLOW
- 8.If DRUM is written as WIFN, how is PARK written in the same code? (a) QBSL (b) LAJQ (c) KZIP (d) JYHO
- 9.If RAIN is written as MHZQ, how is TOYS written in the same code? (a) TZPU (b) RXNS (c) SNXR (d) SYOT
- 10.If MILK is written as JKHL, how is GOLD written in the same code? (a) FNKC (b) CKNF (c) DLOG (d) EMPH
- 11.If HAND is written as FPCJ, how is GOLD written in the same code? (a) DLOG (b) IQNF (c) BJME (d) FNQI
- 12.If PARK is written as KZIP, how is TREE written in the same code? (a) GIVV (b) FHUU (c) USFF (d) HJWW
- 13.If RAIN is written as IZRM, how is BOAT written in the same code? (a) XKYF (b) ZMAH (c) YLZG (d) CPBU
- 14.If DESK is written as KSED, how is COLD written in the same code? (a) EMPD (b) CKNB (c) DPME (d) DLOC
- 15.If RAIN is written as PKCT, how is HAND written in the same code? (a) FPCJ (b) BLYF (c) DNAH (d) JCPF
- 16.If TREE is written as EERT, how is BALL written in the same code? (a) KKZA (b) CBMM (c) LLAB (d) MMBC
- 17.If BOOK is written as DQQM, how is LAMP written in the same code? (a) NCOR (b) MBNQ (c) ODPS (d) JYKN
- 18.If BOAT is written as UBPC, how is CAT written in the same code? (a) TAC (b) SZB (c) DBU (d) UBD
- 19.If PEN is written as OFQ, how is TOYS written in the same code? (a) UPZT (b) RXNS (c) SYOT (d) TZPU
- 20.If PEN is written as MDO, how is HAND written in the same code? (a) GZMC (b) CMZG (c) DNAH (d) EOBI
- 21.If DRUM is written as NVSE, how is TOYS written in the same code? (a) SYOT (b) RXNS (c) TZPU (d) UPZT
- 22.If CAKE is written as DBLF, how is WIND written in the same code? (a) YKPF (b) VHMC (c) EOJX (d) XJOE
- 23.If GOLD is written as DLOG, how is STAR written in the same code? (a) TUBS (b) RATS (c) QZSR (d) SBUT
- 24.If BELL is written as LLEB, how is BALL written in the same code? (a) LLAB (b) CBMM (c) KKZA (d) MMBC
- 25.If BOAT is written as ANZS, how is CAT written in the same code? (a) DBU (b) CAT (c) BZS (d) AYR
- 26.If WIND is written as CMHV, how is MOON written in the same code? (a) LNNM (b) NOOM (c) OPPN (d) MNNL
- 27.If CAKE is written as XZPV, how is MILK written in the same code? (a) MQNO (b) NROP (c) OSPQ (d) NJML
- 28.If MOON is written as KMML, how is HAND written in the same code? (a) FYLB (b) JCPF (c) GZMC (d) EXKA
- 29.If TREE is written as EERT, how is SUN written in the same code? (a) TVO (b) MTR (c) NUS (d) OVT
- 30.If FROG is written as EQNF, how is COLD written in the same code? (a) DPME (b) AMJB (c) BNKC (d) COLD
- 31.If JUMP is written as KVNQ, how is FISH written in the same code? (a) HKUJ (b) ITJG (c) EHRG (d) GJTI
- 32.If BALL is written as KKZA, how is LION written in the same code? (a) NOIL (b) KHNM (c) MNHK (d) OPJM
- 33.If FISH is written as ILVK, how is BOOK written in the same code? (a) FSSO (b) YLLH (c) DQQM (d) ERRN
- 34.If PEN is written as SHQ, how is FROG written in the same code? (a) HTQI (b) IURJ (c) COLD (d) JVSK
- 35.If CAT is written as XZG, how is LAMP written in the same code? (a) MBNQ (b) NYMJ (c) OZNK (d) PAOL
- 36.If SUN is written as OVT, how is KITE written in the same code? (a) ETIK (b) DSHJ (c) LJUF (d) FUJL
- 37.If DESK is written as KSED, how is HAND written in the same code? (a) DNAH (b) CMZG (c) EOBI (d) IBOE
- 38.If DRUM is written as FTWO, how is DESK written in the same code? (a) GHVN (b) FGUM (c) EFTL (d) BCQI
- 39.If LION is written as NOIL, how is MILK written in the same code? (a) NJML (b) JKHL (c) KLIM (d) LMJN
- 40.If DESK is written as KSED, how is STAR written in the same code? (a) QZSR (b) RATS (c) TUBS (d) SBUT
Answer key
- NROP
- TAC
- FLBD
- HGZI
- EQNF
- VKLS
- XLOW
- KZIP
- RXNS
- CKNF
- FNQI
- GIVV
- YLZG
- DLOC
- FPCJ
- LLAB
- NCOR
- UBD
- TZPU
- CMZG
- TZPU
- XJOE
- RATS
- LLAB
- BZS
- MNNL
- NROP
- FYLB
- NUS
- BNKC
- GJTI
- MNHK
- ERRN
- IURJ
- OZNK
- FUJL
- DNAH
- FGUM
- KLIM
- RATS
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