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 MILK is written as KLIM, how is PARK written in the same code? (a) LSBQ (b) JQZO (c) QBSL (d) KRAP
- 2.If NEST is written as TSEN, how is CAT written in the same code? (a) SZB (b) DBU (c) UBD (d) TAC
- 3.If FROG is written as UILT, how is KITE written in the same code? (a) OQFU (b) PRGV (c) LJUF (d) QSHW
- 4.If WIND is written as CMHV, how is SHIP written in the same code? (a) PIHS (b) RGHO (c) OHGR (d) QJIT
- 5.If TREE is written as DDQS, how is BALL written in the same code? (a) LLAB (b) KKZA (c) MMBC (d) AZKK
- 6.If CAT is written as TAC, how is MILK written in the same code? (a) JKHL (b) LMJN (c) KLIM (d) NJML
- 7.If FISH is written as ITJG, how is JUMP written in the same code? (a) OLTI (b) QNVK (c) KVNQ (d) PMUJ
- 8.If GOLD is written as IQNF, how is KITE written in the same code? (a) LJUF (b) NLWH (c) IGRC (d) MKVG
- 9.If SUN is written as NUS, how is NEST written in the same code? (a) SRDM (b) OFTU (c) UTFO (d) TSEN
- 10.If CAKE is written as ECMG, how is CAT written in the same code? (a) AYR (b) ECV (c) DBU (d) FDW
- 11.If SHIP is written as RGHO, how is DRUM written in the same code? (a) CQTL (b) DRUM (c) BPSK (d) ESVN
- 12.If DOG is written as WLT, how is SUN written in the same code? (a) TVO (b) GEL (c) IGN (d) HFM
- 13.If FISH is written as HSIF, how is KITE written in the same code? (a) DSHJ (b) LJUF (c) FUJL (d) ETIK
- 14.If FROG is written as UILT, how is MILK written in the same code? (a) NROP (b) NJML (c) MQNO (d) OSPQ
- 15.If LAMP is written as OLZK, how is BALL written in the same code? (a) MMBC (b) AZKK (c) LLAB (d) KKZA
- 16.If SHIP is written as TIJQ, how is BOAT written in the same code? (a) DQCV (b) UBPC (c) ANZS (d) CPBU
- 17.If DESK is written as WVHP, how is TREE written in the same code? (a) FHUU (b) GIVV (c) HJWW (d) USFF
- 18.If JUMP is written as PMUJ, how is DRUM written in the same code? (a) NVSE (b) MURD (c) ESVN (d) LTQC
- 19.If PARK is written as KRAP, how is JUMP written in the same code? (a) QNVK (b) KVNQ (c) PMUJ (d) OLTI
- 20.If NEST is written as PGUV, how is JUMP written in the same code? (a) MXPS (b) HSKN (c) LWOR (d) KVNQ
- 21.If HAND is written as DNAH, how is DESK written in the same code? (a) JRDC (b) EFTL (c) LTFE (d) KSED
- 22.If TREE is written as EERT, how is DRUM written in the same code? (a) NVSE (b) MURD (c) ESVN (d) LTQC
- 23.If CAT is written as SZB, how is HAND written in the same code? (a) GZMC (b) DNAH (c) EOBI (d) CMZG
- 24.If BOAT is written as ZMYR, how is GOLD written in the same code? (a) IQNF (b) DLIA (c) EMJB (d) FNKC
- 25.If HAND is written as DNAH, how is BOAT written in the same code? (a) SZNA (b) CPBU (c) TAOB (d) UBPC
- 26.If MOON is written as NOOM, how is JUMP written in the same code? (a) KVNQ (b) QNVK (c) OLTI (d) PMUJ
- 27.If RAIN is written as NIAR, how is NEST written in the same code? (a) OFTU (b) TSEN (c) UTFO (d) SRDM
- 28.If MILK is written as JKHL, how is CAT written in the same code? (a) SZB (b) TAC (c) UBD (d) BZS
- 29.If JUMP is written as MXPS, how is FISH written in the same code? (a) HKUJ (b) JMWL (c) ILVK (d) CFPE
- 30.If TREE is written as DDQS, how is CAKE written in the same code? (a) BZJD (b) DJZB (c) FLBD (d) EKAC
- 31.If FISH is written as URHS, how is PEN written in the same code? (a) JUL (b) QFO (c) KVM (d) LWN
- 32.If PEN is written as KVM, how is GOLD written in the same code? (a) HPME (b) SKNV (c) TLOW (d) UMPX
- 33.If FISH is written as URHS, how is STAR written in the same code? (a) TUBS (b) GFYH (c) HGZI (d) IHAJ
- 34.If BOOK is written as LPPC, how is BALL written in the same code? (a) LLAB (b) MMBC (c) CBMM (d) KKZA
- 35.If PARK is written as MTCR, how is BALL written in the same code? (a) NNCD (b) JJYZ (c) DCNN (d) LLAB
- 36.If LAMP is written as PMAL, how is NEST written in the same code? (a) UTFO (b) TSEN (c) SRDM (d) OFTU
- 37.If STAR is written as TUBS, how is LION written in the same code? (a) NKQP (b) OPJM (c) MJPO (d) KHNM
- 38.If NEST is written as MVHG, how is KITE written in the same code? (a) PRGV (b) LJUF (c) QSHW (d) OQFU
- 39.If BOOK is written as YLLP, how is BELL written in the same code? (a) XUNN (b) CFMM (c) ZWPP (d) YVOO
- 40.If SUN is written as HFM, how is PEN written in the same code? (a) LWN (b) QFO (c) JUL (d) KVM
Answer key
- KRAP
- TAC
- PRGV
- OHGR
- KKZA
- KLIM
- QNVK
- MKVG
- TSEN
- ECV
- CQTL
- HFM
- ETIK
- NROP
- KKZA
- CPBU
- GIVV
- MURD
- PMUJ
- LWOR
- KSED
- MURD
- CMZG
- EMJB
- TAOB
- PMUJ
- TSEN
- SZB
- ILVK
- DJZB
- KVM
- TLOW
- HGZI
- MMBC
- NNCD
- TSEN
- MJPO
- PRGV
- YVOO
- KVM
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