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 PEN is written as OFQ, how is MILK written in the same code? (a) JKHL (b) KLIM (c) NJML (d) LMJN
- 2.If SUN is written as HFM, how is GOLD written in the same code? (a) UMPX (b) TLOW (c) SKNV (d) HPME
- 3.If HAND is written as IBOE, how is BOOK written in the same code? (a) LPPC (b) DQQM (c) CPPL (d) ANNJ
- 4.If BOOK is written as YLLP, how is PEN written in the same code? (a) KVM (b) JUL (c) LWN (d) QFO
- 5.If NEST is written as PGUV, how is PARK written in the same code? (a) NYPI (b) SDUN (c) RCTM (d) QBSL
- 6.If RAIN is written as NIAR, how is PEN written in the same code? (a) OFQ (b) MDO (c) QFO (d) NEP
- 7.If TOYS is written as VQAU, how is PARK written in the same code? (a) SDUN (b) QBSL (c) RCTM (d) NYPI
- 8.If TREE is written as EERT, how is FISH written in the same code? (a) ITJG (b) GJTI (c) GRHE (d) HSIF
- 9.If JUMP is written as QFNK, how is DESK written in the same code? (a) VUGO (b) EFTL (c) WVHP (d) XWIQ
- 10.If BOOK is written as YLLP, how is DESK written in the same code? (a) EFTL (b) VUGO (c) XWIQ (d) WVHP
- 11.If LION is written as NOIL, how is TREE written in the same code? (a) EERT (b) USFF (c) FFSU (d) DDQS
- 12.If HAND is written as DNAH, how is DESK written in the same code? (a) EFTL (b) JRDC (c) KSED (d) LTFE
- 13.If GOLD is written as JROG, how is DESK written in the same code? (a) GHVN (b) HIWO (c) ABPH (d) FGUM
- 14.If GOLD is written as FNKC, how is RAIN written in the same code? (a) PYGL (b) SBJO (c) QZHM (d) RAIN
- 15.If BOAT is written as TAOB, how is JUMP written in the same code? (a) OLTI (b) PMUJ (c) QNVK (d) KVNQ
- 16.If CAKE is written as GMCE, how is BELL written in the same code? (a) JJCZ (b) LLEB (c) NNGD (d) DGNN
- 17.If LION is written as ORLM, how is DESK written in the same code? (a) VUGO (b) EFTL (c) XWIQ (d) WVHP
- 18.If TOYS is written as GLBH, how is MILK written in the same code? (a) NJML (b) NROP (c) OSPQ (d) MQNO
- 19.If HAND is written as JCPF, how is LAMP written in the same code? (a) JYKN (b) ODPS (c) MBNQ (d) NCOR
- 20.If KITE is written as ETIK, how is FISH written in the same code? (a) GJTI (b) GRHE (c) HSIF (d) ITJG
- 21.If DOG is written as WLT, how is CAKE written in the same code? (a) DBLF (b) WYOU (c) XZPV (d) YAQW
- 22.If SHIP is written as HSRK, how is BALL written in the same code? (a) XYNN (b) YZOO (c) CBMM (d) ZAPP
- 23.If CAT is written as AYR, how is TREE written in the same code? (a) QOBB (b) SQDD (c) RPCC (d) VTGG
- 24.If SUN is written as UWP, how is SHIP written in the same code? (a) TIJQ (b) UJKR (c) VKLS (d) QFGN
- 25.If SUN is written as QSL, how is FISH written in the same code? (a) DGQF (b) CFPE (c) HKUJ (d) EHRG
- 26.If BELL is written as LLEB, how is SHIP written in the same code? (a) TIJQ (b) PIHS (c) OHGR (d) QJIT
- 27.If MILK is written as NROP, how is CAT written in the same code? (a) DBU (b) XZG (c) YAH (d) WYF
- 28.If GOLD is written as IQNF, how is JUMP written in the same code? (a) KVNQ (b) MXPS (c) HSKN (d) LWOR
- 29.If FISH is written as URHS, how is DRUM written in the same code? (a) XJGO (b) VHEM (c) ESVN (d) WIFN
- 30.If FISH is written as JUKH, how is SUN written in the same code? (a) LSQ (b) UWP (c) NUS (d) PWU
- 31.If FROG is written as UILT, how is JUMP written in the same code? (a) RGOL (b) KVNQ (c) QFNK (d) PEMJ
- 32.If LAMP is written as PMAL, how is SUN written in the same code? (a) TVO (b) NUS (c) OVT (d) MTR
- 33.If TREE is written as GGTV, how is DRUM written in the same code? (a) KSPB (b) MURD (c) OWTF (d) FTWO
- 34.If MILK is written as KGJI, how is DESK written in the same code? (a) ABPH (b) CDRJ (c) FGUM (d) BCQI
- 35.If WIND is written as DNIW, how is STAR written in the same code? (a) SBUT (b) TUBS (c) RATS (d) QZSR
- 36.If CAT is written as XZG, how is PEN written in the same code? (a) KVM (b) LWN (c) QFO (d) JUL
- 37.If RAIN is written as SBJO, how is CAT written in the same code? (a) BZS (b) UBD (c) ECV (d) DBU
- 38.If TOYS is written as SYOT, how is DESK written in the same code? (a) KSED (b) LTFE (c) JRDC (d) EFTL
- 39.If FISH is written as HSIF, how is BELL written in the same code? (a) MMFC (b) CFMM (c) KKDA (d) LLEB
- 40.If CAT is written as XZG, how is COLD written in the same code? (a) YMPX (b) DPME (c) XLOW (d) WKNV
Answer key
- LMJN
- TLOW
- CPPL
- KVM
- RCTM
- NEP
- RCTM
- HSIF
- WVHP
- WVHP
- EERT
- KSED
- GHVN
- QZHM
- PMUJ
- NNGD
- WVHP
- NROP
- NCOR
- HSIF
- XZPV
- YZOO
- RPCC
- UJKR
- DGQF
- PIHS
- XZG
- LWOR
- WIFN
- PWU
- QFNK
- NUS
- OWTF
- BCQI
- RATS
- KVM
- DBU
- KSED
- LLEB
- XLOW
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