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 KVM, how is BALL written in the same code? (a) YZOO (b) CBMM (c) XYNN (d) ZAPP
- 2.If TREE is written as GIVV, how is MILK written in the same code? (a) MQNO (b) NJML (c) OSPQ (d) NROP
- 3.If RAIN is written as SBJO, how is BELL written in the same code? (a) CFMM (b) ADKK (c) DGNN (d) MMFC
- 4.If SUN is written as NUS, how is CAT written in the same code? (a) DBU (b) UBD (c) TAC (d) SZB
- 5.If DOG is written as GOD, how is BOOK written in the same code? (a) JNNA (b) LPPC (c) KOOB (d) CPPL
- 6.If WIND is written as ZLQG, how is CAKE written in the same code? (a) ECMG (b) ZXHB (c) GEOI (d) FDNH
- 7.If NEST is written as TSEN, how is JUMP written in the same code? (a) KVNQ (b) PMUJ (c) QNVK (d) OLTI
- 8.If COLD is written as DPME, how is SUN written in the same code? (a) RTM (b) OVT (c) UWP (d) TVO
- 9.If TOYS is written as SNXR, how is FROG written in the same code? (a) GSPH (b) EQNF (c) FROG (d) DPME
- 10.If KITE is written as FUJL, how is LAMP written in the same code? (a) OLZK (b) PMAL (c) MBNQ (d) QNBM
- 11.If JUMP is written as ROWL, how is NEST written in the same code? (a) TSEN (b) VUGP (c) PGUV (d) RQCL
- 12.If DOG is written as WLT, how is LAMP written in the same code? (a) OZNK (b) NYMJ (c) PAOL (d) MBNQ
- 13.If DOG is written as EPH, how is TOYS written in the same code? (a) UPZT (b) SNXR (c) VQAU (d) TZPU
- 14.If BALL is written as LLAB, how is CAKE written in the same code? (a) FLBD (b) DJZB (c) EKAC (d) DBLF
- 15.If FROG is written as UILT, how is BELL written in the same code? (a) ZWPP (b) YVOO (c) CFMM (d) XUNN
- 16.If MOON is written as NLLM, how is MILK written in the same code? (a) MQNO (b) NJML (c) OSPQ (d) NROP
- 17.If JUMP is written as ROWL, how is BELL written in the same code? (a) DGNN (b) JJCZ (c) NNGD (d) LLEB
- 18.If CAT is written as XZG, how is FISH written in the same code? (a) URHS (b) TQGR (c) GJTI (d) VSIT
- 19.If TREE is written as EERT, how is BOAT written in the same code? (a) TAOB (b) UBPC (c) CPBU (d) SZNA
- 20.If DOG is written as WLT, how is SUN written in the same code? (a) GEL (b) HFM (c) IGN (d) TVO
- 21.If SHIP is written as PIHS, how is BOOK written in the same code? (a) LPPC (b) JNNA (c) KOOB (d) CPPL
- 22.If PARK is written as JQZO, how is TOYS written in the same code? (a) SNXR (b) TZPU (c) RXNS (d) SYOT
- 23.If STAR is written as RSZQ, how is NEST written in the same code? (a) OFTU (b) MDRS (c) NEST (d) LCQR
- 24.If DRUM is written as OWTF, how is TOYS written in the same code? (a) QWMR (b) UAQV (c) SYOT (d) VQAU
- 25.If DRUM is written as MURD, how is TOYS written in the same code? (a) TZPU (b) SYOT (c) UPZT (d) RXNS
- 26.If LAMP is written as OZNK, how is GOLD written in the same code? (a) UMPX (b) SKNV (c) TLOW (d) HPME
- 27.If RAIN is written as OJBS, how is SUN written in the same code? (a) NUS (b) TVO (c) MTR (d) OVT
- 28.If FISH is written as URHS, how is PEN written in the same code? (a) KVM (b) JUL (c) LWN (d) QFO
- 29.If BOOK is written as DQQM, how is COLD written in the same code? (a) DPME (b) FROG (c) AMJB (d) EQNF
- 30.If FROG is written as GORF, how is COLD written in the same code? (a) DLOC (b) CKNB (c) EMPD (d) DPME
- 31.If NEST is written as TSEN, how is BOAT written in the same code? (a) CPBU (b) SZNA (c) TAOB (d) UBPC
- 32.If PARK is written as LSBQ, how is TOYS written in the same code? (a) RXNS (b) SYOT (c) UPZT (d) TZPU
- 33.If FROG is written as HPSG, how is SHIP written in the same code? (a) OHGR (b) TIJQ (c) QJIT (d) PIHS
- 34.If MOON is written as NPPO, how is HAND written in the same code? (a) IBOE (b) JCPF (c) EOBI (d) GZMC
- 35.If MILK is written as KLIM, how is TREE written in the same code? (a) DDQS (b) FFSU (c) USFF (d) EERT
- 36.If HAND is written as CMZG, how is MILK written in the same code? (a) LMJN (b) JKHL (c) LHKJ (d) KLIM
- 37.If CAKE is written as FLBD, how is PARK written in the same code? (a) QBSL (b) KRAP (c) LSBQ (d) JQZO
- 38.If COLD is written as XLOW, how is STAR written in the same code? (a) IHAJ (b) GFYH (c) TUBS (d) HGZI
- 39.If COLD is written as DLOC, how is BALL written in the same code? (a) KKZA (b) MMBC (c) LLAB (d) CBMM
- 40.If PARK is written as KZIP, how is MILK written in the same code? (a) OSPQ (b) NJML (c) NROP (d) MQNO
Answer key
- YZOO
- NROP
- CFMM
- TAC
- KOOB
- FDNH
- PMUJ
- TVO
- EQNF
- QNBM
- VUGP
- OZNK
- UPZT
- EKAC
- YVOO
- NROP
- NNGD
- URHS
- TAOB
- HFM
- KOOB
- RXNS
- MDRS
- UAQV
- SYOT
- TLOW
- OVT
- KVM
- EQNF
- DLOC
- TAOB
- TZPU
- QJIT
- IBOE
- EERT
- JKHL
- LSBQ
- HGZI
- LLAB
- NROP
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