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 FROG is written as FNQE, how is MOON written in the same code? (a) NOOM (b) OPPN (c) MNNL (d) LNNM
- 2.If BALL is written as DCNN, how is WIND written in the same code? (a) YKPF (b) XJOE (c) ZLQG (d) UGLB
- 3.If PEN is written as MDO, how is PARK written in the same code? (a) JQZO (b) OZQJ (c) LSBQ (d) KRAP
- 4.If HAND is written as JCPF, how is BALL written in the same code? (a) CBMM (b) ZYJJ (c) DCNN (d) EDOO
- 5.If LAMP is written as PMAL, how is BALL written in the same code? (a) CBMM (b) KKZA (c) LLAB (d) MMBC
- 6.If COLD is written as XLOW, how is GOLD written in the same code? (a) HPME (b) UMPX (c) TLOW (d) SKNV
- 7.If NEST is written as UTFO, how is PEN written in the same code? (a) QFO (b) MDO (c) OFQ (d) NEP
- 8.If BELL is written as YVOO, how is KITE written in the same code? (a) PRGV (b) QSHW (c) LJUF (d) OQFU
- 9.If COLD is written as DLOC, how is MOON written in the same code? (a) OPPN (b) NOOM (c) NPPO (d) MNNL
- 10.If RAIN is written as PKCT, how is NEST written in the same code? (a) PGUV (b) VUGP (c) RQCL (d) TSEN
- 11.If CAT is written as TAC, how is TREE written in the same code? (a) DDQS (b) FFSU (c) EERT (d) USFF
- 12.If MILK is written as MNKO, how is MOON written in the same code? (a) NOOM (b) LMMK (c) OQQP (d) PQQO
- 13.If GOLD is written as TLOW, how is WIND written in the same code? (a) CQLV (b) ESNX (c) DRMW (d) XJOE
- 14.If CAKE is written as DJZB, how is KITE written in the same code? (a) FUJL (b) JHSD (c) DSHJ (d) ETIK
- 15.If JUMP is written as QFNK, how is MILK written in the same code? (a) NJML (b) MQNO (c) NROP (d) OSPQ
- 16.If BOOK is written as LPPC, how is WIND written in the same code? (a) DNIW (b) XJOE (c) CMHV (d) EOJX
- 17.If TREE is written as RPCC, how is CAT written in the same code? (a) BZS (b) ECV (c) AYR (d) ZXQ
- 18.If DOG is written as BME, how is CAT written in the same code? (a) AYR (b) ZXQ (c) BZS (d) ECV
- 19.If COLD is written as FNQE, how is DESK written in the same code? (a) MUGF (b) KSED (c) FGUM (d) IQCB
- 20.If FISH is written as HSIF, how is PEN written in the same code? (a) MDO (b) NEP (c) QFO (d) OFQ
- 21.If KITE is written as LJUF, how is SHIP written in the same code? (a) RGHO (b) TIJQ (c) UJKR (d) QJIT
- 22.If STAR is written as HGZI, how is SUN written in the same code? (a) GEL (b) IGN (c) TVO (d) HFM
- 23.If WIND is written as DNIW, how is PARK written in the same code? (a) KRAP (b) QBSL (c) LSBQ (d) JQZO
- 24.If WIND is written as XJOE, how is CAKE written in the same code? (a) ECMG (b) BZJD (c) FLBD (d) DBLF
- 25.If BOAT is written as TAOB, how is PARK written in the same code? (a) QBSL (b) JQZO (c) LSBQ (d) KRAP
- 26.If FROG is written as DPME, how is LION written in the same code? (a) IFLK (b) JGML (c) KHNM (d) NKQP
- 27.If SHIP is written as OHGR, how is PARK written in the same code? (a) KRAP (b) JQZO (c) LSBQ (d) OZQJ
- 28.If TOYS is written as SNXR, how is RAIN written in the same code? (a) PYGL (b) RAIN (c) SBJO (d) QZHM
- 29.If RAIN is written as PKCT, how is GOLD written in the same code? (a) DLOG (b) BJME (c) IQNF (d) FNQI
- 30.If MILK is written as NROP, how is DOG written in the same code? (a) XMU (b) VKS (c) WLT (d) EPH
- 31.If PEN is written as KVM, how is COLD written in the same code? (a) YMPX (b) WKNV (c) DPME (d) XLOW
- 32.If SUN is written as NUS, how is SHIP written in the same code? (a) QJIT (b) PIHS (c) OHGR (d) TIJQ
- 33.If DESK is written as WVHP, how is BOOK written in the same code? (a) XKKO (b) ZMMQ (c) CPPL (d) YLLP
- 34.If JUMP is written as KVNQ, how is PEN written in the same code? (a) RGP (b) ODM (c) QFO (d) OFQ
- 35.If BALL is written as YZOO, how is BOAT written in the same code? (a) XKYF (b) CPBU (c) YLZG (d) ZMAH
- 36.If JUMP is written as HSKN, how is RAIN written in the same code? (a) PYGL (b) QZHM (c) TCKP (d) OXFK
- 37.If PARK is written as QBSL, how is MILK written in the same code? (a) LMJN (b) OKNM (c) NJML (d) LHKJ
- 38.If WIND is written as DRMW, how is FISH written in the same code? (a) GJTI (b) VSIT (c) URHS (d) TQGR
- 39.If LAMP is written as QNBM, how is DOG written in the same code? (a) EPH (b) HPE (c) FNC (d) GOD
- 40.If RAIN is written as MHZQ, how is FISH written in the same code? (a) HSIF (b) ITJG (c) EHRG (d) GRHE
Answer key
- MNNL
- YKPF
- JQZO
- DCNN
- LLAB
- TLOW
- OFQ
- PRGV
- NOOM
- VUGP
- EERT
- PQQO
- DRMW
- DSHJ
- NROP
- EOJX
- AYR
- AYR
- MUGF
- NEP
- TIJQ
- HFM
- KRAP
- DBLF
- KRAP
- JGML
- JQZO
- QZHM
- FNQI
- WLT
- XLOW
- PIHS
- YLLP
- QFO
- YLZG
- PYGL
- NJML
- URHS
- HPE
- GRHE
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