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 GOLD is written as EMPH, how is HAND written in the same code? (a) IBOE (b) DNAH (c) EOBI (d) CMZG
- 2.If MOON is written as PQQO, how is DOG written in the same code? (a) FQI (b) GOD (c) IQF (d) EMB
- 3.If CAT is written as VCE, how is WIND written in the same code? (a) BLGU (b) DNIW (c) FPKY (d) YKPF
- 4.If DESK is written as KSED, how is FROG written in the same code? (a) GSPH (b) HPSG (c) FNQE (d) GORF
- 5.If RAIN is written as PKCT, how is NEST written in the same code? (a) TSEN (b) VUGP (c) RQCL (d) PGUV
- 6.If FISH is written as URHS, how is KITE written in the same code? (a) PRGV (b) OQFU (c) LJUF (d) QSHW
- 7.If BOOK is written as YLLP, how is BOAT written in the same code? (a) XKYF (b) YLZG (c) ZMAH (d) CPBU
- 8.If FROG is written as GORF, how is BOAT written in the same code? (a) UBPC (b) TAOB (c) SZNA (d) CPBU
- 9.If LION is written as NOIL, how is STAR written in the same code? (a) QZSR (b) SBUT (c) RATS (d) TUBS
- 10.If JUMP is written as PMUJ, how is DOG written in the same code? (a) GOD (b) EPH (c) FNC (d) HPE
- 11.If BOOK is written as YLLP, how is DESK written in the same code? (a) EFTL (b) XWIQ (c) WVHP (d) VUGO
- 12.If GOLD is written as JROG, how is HAND written in the same code? (a) LERH (b) KDQG (c) EXKA (d) JCPF
- 13.If LION is written as OPJM, how is BOOK written in the same code? (a) CPPL (b) LPPC (c) KOOB (d) JNNA
- 14.If BOOK is written as KOOB, how is BELL written in the same code? (a) MMFC (b) KKDA (c) CFMM (d) LLEB
- 15.If DOG is written as CNF, how is COLD written in the same code? (a) DPME (b) COLD (c) AMJB (d) BNKC
- 16.If JUMP is written as QFNK, how is RAIN written in the same code? (a) HYQL (b) SBJO (c) IZRM (d) JASN
- 17.If DESK is written as CDRJ, how is HAND written in the same code? (a) IBOE (b) GZMC (c) FYLB (d) HAND
- 18.If DESK is written as WVHP, how is GOLD written in the same code? (a) UMPX (b) SKNV (c) TLOW (d) HPME
- 19.If DOG is written as FQI, how is CAT written in the same code? (a) FDW (b) AYR (c) DBU (d) ECV
- 20.If SUN is written as UWP, how is MILK written in the same code? (a) OKNM (b) PLON (c) KGJI (d) NJML
- 21.If SUN is written as PWU, how is CAT written in the same code? (a) ECV (b) RYA (c) TAC (d) VCE
- 22.If PEN is written as SHQ, how is DRUM written in the same code? (a) HVYQ (b) GUXP (c) AORJ (d) FTWO
- 23.If WIND is written as VHMC, how is LAMP written in the same code? (a) LAMP (b) MBNQ (c) JYKN (d) KZLO
- 24.If BOOK is written as LPPC, how is JUMP written in the same code? (a) KVNQ (b) PMUJ (c) OLTI (d) QNVK
- 25.If BALL is written as ZYJJ, how is TREE written in the same code? (a) QOBB (b) VTGG (c) SQDD (d) RPCC
- 26.If GOLD is written as HPME, how is WIND written in the same code? (a) VHMC (b) EOJX (c) XJOE (d) YKPF
- 27.If BALL is written as DCNN, how is JUMP written in the same code? (a) MXPS (b) HSKN (c) LWOR (d) KVNQ
- 28.If DOG is written as IQF, how is SUN written in the same code? (a) LSQ (b) NUS (c) PWU (d) UWP
- 29.If PARK is written as MTCR, how is RAIN written in the same code? (a) TCKP (b) LGYP (c) NIAR (d) PKCT
- 30.If DOG is written as EPH, how is SHIP written in the same code? (a) QJIT (b) RGHO (c) TIJQ (d) UJKR
- 31.If COLD is written as DPME, how is BOOK written in the same code? (a) CPPL (b) ANNJ (c) DQQM (d) LPPC
- 32.If GOLD is written as DLOG, how is MILK written in the same code? (a) NJML (b) LMJN (c) KLIM (d) JKHL
- 33.If LION is written as NKQP, how is PARK written in the same code? (a) RCTM (b) NYPI (c) SDUN (d) QBSL
- 34.If STAR is written as HGZI, how is KITE written in the same code? (a) LJUF (b) PRGV (c) OQFU (d) QSHW
- 35.If DOG is written as EPH, how is GOLD written in the same code? (a) HPME (b) FNKC (c) IQNF (d) EMPH
- 36.If BOOK is written as LPPC, how is TREE written in the same code? (a) FFSU (b) USFF (c) EERT (d) DDQS
- 37.If FISH is written as URHS, how is PEN written in the same code? (a) LWN (b) QFO (c) KVM (d) JUL
- 38.If SHIP is written as QJIT, how is HAND written in the same code? (a) DNAH (b) IBOE (c) EOBI (d) CMZG
- 39.If BELL is written as NNGD, how is BALL written in the same code? (a) LLAB (b) DCNN (c) JJYZ (d) NNCD
- 40.If LAMP is written as OZNK, how is PARK written in the same code? (a) LAJQ (b) KZIP (c) QBSL (d) JYHO
Answer key
- EOBI
- IQF
- FPKY
- GORF
- VUGP
- PRGV
- YLZG
- TAOB
- RATS
- GOD
- WVHP
- KDQG
- LPPC
- LLEB
- BNKC
- IZRM
- GZMC
- TLOW
- ECV
- OKNM
- VCE
- GUXP
- KZLO
- QNVK
- RPCC
- XJOE
- LWOR
- PWU
- PKCT
- TIJQ
- CPPL
- KLIM
- RCTM
- PRGV
- HPME
- FFSU
- KVM
- EOBI
- NNCD
- KZIP
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