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 LAMP is written as ODPS, how is MILK written in the same code? (a) JFIH (b) QMPO (c) OKNM (d) PLON
- 2.If KITE is written as MKVG, how is LION written in the same code? (a) OLRQ (b) NKQP (c) MJPO (d) JGML
- 3.If DOG is written as BME, how is TREE written in the same code? (a) RPCC (b) QOBB (c) SQDD (d) VTGG
- 4.If WIND is written as XJOE, how is TREE written in the same code? (a) VTGG (b) USFF (c) SQDD (d) FFSU
- 5.If SUN is written as NUS, how is FROG written in the same code? (a) GSPH (b) HPSG (c) FNQE (d) GORF
- 6.If LAMP is written as PMAL, how is TOYS written in the same code? (a) UPZT (b) RXNS (c) SYOT (d) TZPU
- 7.If BELL is written as CFMM, how is WIND written in the same code? (a) YKPF (b) VHMC (c) EOJX (d) XJOE
- 8.If SUN is written as OVT, how is BALL written in the same code? (a) LLAB (b) KKZA (c) MMBC (d) CBMM
- 9.If LION is written as OLRQ, how is NEST written in the same code? (a) RIWX (b) PGUV (c) QHVW (d) KBPQ
- 10.If PEN is written as KVM, how is TREE written in the same code? (a) USFF (b) FHUU (c) HJWW (d) GIVV
- 11.If SHIP is written as QJIT, how is DOG written in the same code? (a) GOD (b) FNC (c) HPE (d) EPH
- 12.If DRUM is written as WIFN, how is WIND written in the same code? (a) XJOE (b) CQLV (c) DRMW (d) ESNX
- 13.If JUMP is written as QFNK, how is BOOK written in the same code? (a) ZMMQ (b) CPPL (c) XKKO (d) YLLP
- 14.If DOG is written as CNF, how is DRUM written in the same code? (a) BPSK (b) CQTL (c) ESVN (d) DRUM
- 15.If MOON is written as OPPN, how is DESK written in the same code? (a) JRDC (b) LTFE (c) EFTL (d) KSED
- 16.If CAT is written as AYR, how is BOOK written in the same code? (a) DQQM (b) ANNJ (c) ZMMI (d) YLLH
- 17.If MOON is written as MNNL, how is PARK written in the same code? (a) LSBQ (b) KRAP (c) OZQJ (d) JQZO
- 18.If FROG is written as GORF, how is CAKE written in the same code? (a) FLBD (b) EKAC (c) DJZB (d) DBLF
- 19.If PARK is written as JQZO, how is BALL written in the same code? (a) LLAB (b) MMBC (c) AZKK (d) KKZA
- 20.If MOON is written as LNNM, how is COLD written in the same code? (a) DPME (b) AMJB (c) BNKC (d) COLD
- 21.If PEN is written as MDO, how is MOON written in the same code? (a) LNNM (b) OPPN (c) MNNL (d) NOOM
- 22.If BELL is written as CFMM, how is TOYS written in the same code? (a) VQAU (b) UPZT (c) TZPU (d) SNXR
- 23.If DRUM is written as WIFN, how is DOG written in the same code? (a) EPH (b) XMU (c) WLT (d) VKS
- 24.If HAND is written as DNAH, how is JUMP written in the same code? (a) KVNQ (b) PMUJ (c) OLTI (d) QNVK
- 25.If MOON is written as OQQP, how is NEST written in the same code? (a) QHVW (b) OFTU (c) PGUV (d) LCQR
- 26.If HAND is written as SZMW, how is TREE written in the same code? (a) USFF (b) GIVV (c) FHUU (d) HJWW
- 27.If LAMP is written as OZNK, how is BOOK written in the same code? (a) CPPL (b) ZMMQ (c) XKKO (d) YLLP
- 28.If BOOK is written as ERRN, how is JUMP written in the same code? (a) LWOR (b) MXPS (c) NYQT (d) GRJM
- 29.If BOOK is written as DQQM, how is MOON written in the same code? (a) KMML (b) PRRQ (c) OQQP (d) NPPO
- 30.If DOG is written as HPE, how is BELL written in the same code? (a) CFMM (b) LLEB (c) KKDA (d) MMFC
- 31.If TOYS is written as SYOT, how is TREE written in the same code? (a) FFSU (b) EERT (c) DDQS (d) USFF
- 32.If COLD is written as DLOC, how is BOOK written in the same code? (a) CPPL (b) KOOB (c) LPPC (d) JNNA
- 33.If MOON is written as NLLM, how is PEN written in the same code? (a) QFO (b) LWN (c) JUL (d) KVM
- 34.If BELL is written as YVOO, how is FISH written in the same code? (a) TQGR (b) VSIT (c) URHS (d) GJTI
- 35.If BELL is written as ADKK, how is RAIN written in the same code? (a) PYGL (b) QZHM (c) RAIN (d) SBJO
- 36.If BELL is written as YVOO, how is COLD written in the same code? (a) WKNV (b) XLOW (c) YMPX (d) DPME
- 37.If STAR is written as RATS, how is MILK written in the same code? (a) JKHL (b) KLIM (c) NJML (d) LMJN
- 38.If BALL is written as CBMM, how is TOYS written in the same code? (a) SNXR (b) VQAU (c) UPZT (d) TZPU
- 39.If GOLD is written as DLOG, how is BOOK written in the same code? (a) LPPC (b) CPPL (c) KOOB (d) JNNA
- 40.If NEST is written as VUGP, how is SHIP written in the same code? (a) UJKR (b) RKJU (c) NGFQ (d) PIHS
Answer key
- PLON
- NKQP
- RPCC
- USFF
- GORF
- SYOT
- XJOE
- MMBC
- QHVW
- GIVV
- HPE
- DRMW
- YLLP
- CQTL
- LTFE
- ZMMI
- JQZO
- EKAC
- KKZA
- BNKC
- MNNL
- UPZT
- WLT
- PMUJ
- PGUV
- GIVV
- YLLP
- MXPS
- OQQP
- MMFC
- EERT
- KOOB
- KVM
- URHS
- QZHM
- XLOW
- KLIM
- UPZT
- KOOB
- RKJU
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