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 SUN is written as RTM, how is KITE written in the same code? (a) IGRC (b) JHSD (c) LJUF (d) KITE
- 2.If COLD is written as XLOW, how is RAIN written in the same code? (a) JASN (b) SBJO (c) IZRM (d) HYQL
- 3.If BELL is written as LLEB, how is FISH written in the same code? (a) GJTI (b) ITJG (c) GRHE (d) HSIF
- 4.If PEN is written as KVM, how is RAIN written in the same code? (a) JASN (b) SBJO (c) HYQL (d) IZRM
- 5.If CAT is written as FDW, how is PEN written in the same code? (a) MBK (b) RGP (c) TIR (d) SHQ
- 6.If PEN is written as KVM, how is BOAT written in the same code? (a) XKYF (b) ZMAH (c) CPBU (d) YLZG
- 7.If DOG is written as BME, how is RAIN written in the same code? (a) PYGL (b) TCKP (c) QZHM (d) OXFK
- 8.If TREE is written as SQDD, how is BOAT written in the same code? (a) ANZS (b) CPBU (c) BOAT (d) ZMYR
- 9.If JUMP is written as ITLO, how is BALL written in the same code? (a) BALL (b) AZKK (c) CBMM (d) ZYJJ
- 10.If FROG is written as GORF, how is SUN written in the same code? (a) NUS (b) TVO (c) MTR (d) OVT
- 11.If NEST is written as OFTU, how is SUN written in the same code? (a) RTM (b) TVO (c) OVT (d) UWP
- 12.If JUMP is written as OLTI, how is TREE written in the same code? (a) DDQS (b) FFSU (c) SQDD (d) EERT
- 13.If TOYS is written as WRBV, how is BALL written in the same code? (a) FEPP (b) DCNN (c) EDOO (d) YXII
- 14.If HAND is written as SZMW, how is JUMP written in the same code? (a) KVNQ (b) PEMJ (c) RGOL (d) QFNK
- 15.If COLD is written as AMJB, how is WIND written in the same code? (a) YKPF (b) VHMC (c) UGLB (d) TFKA
- 16.If CAT is written as FDW, how is BOAT written in the same code? (a) FSEX (b) YLXQ (c) DQCV (d) ERDW
- 17.If TOYS is written as WRBV, how is MILK written in the same code? (a) QMPO (b) PLON (c) JFIH (d) OKNM
- 18.If TREE is written as RPCC, how is COLD written in the same code? (a) BNKC (b) AMJB (c) EQNF (d) ZLIA
- 19.If COLD is written as DLOC, how is KITE written in the same code? (a) LJUF (b) DSHJ (c) ETIK (d) FUJL
- 20.If SUN is written as TVO, how is WIND written in the same code? (a) VHMC (b) EOJX (c) YKPF (d) XJOE
- 21.If KITE is written as LJUF, how is BALL written in the same code? (a) DCNN (b) CBMM (c) MMBC (d) AZKK
- 22.If FROG is written as DPME, how is MILK written in the same code? (a) JFIH (b) KGJI (c) OKNM (d) LHKJ
- 23.If FROG is written as UILT, how is PEN written in the same code? (a) JUL (b) LWN (c) KVM (d) QFO
- 24.If JUMP is written as MXPS, how is CAT written in the same code? (a) FDW (b) ECV (c) GEX (d) ZXQ
- 25.If JUMP is written as QFNK, how is WIND written in the same code? (a) ESNX (b) XJOE (c) DRMW (d) CQLV
- 26.If SUN is written as NUS, how is FROG written in the same code? (a) HPSG (b) GSPH (c) GORF (d) FNQE
- 27.If MILK is written as NROP, how is SHIP written in the same code? (a) HSRK (b) GRQJ (c) ITSL (d) TIJQ
- 28.If SUN is written as VXQ, how is TREE written in the same code? (a) WUHH (b) VTGG (c) QOBB (d) XVII
- 29.If MILK is written as NJML, how is FISH written in the same code? (a) EHRG (b) ITJG (c) HKUJ (d) GJTI
- 30.If BOOK is written as DQQM, how is DOG written in the same code? (a) GRJ (b) EPH (c) BME (d) FQI
- 31.If SUN is written as NUS, how is MILK written in the same code? (a) LMJN (b) NJML (c) JKHL (d) KLIM
- 32.If MILK is written as NROP, how is HAND written in the same code? (a) IBOE (b) SZMW (c) RYLV (d) TANX
- 33.If MOON is written as OPPN, how is DESK written in the same code? (a) LTFE (b) KSED (c) JRDC (d) EFTL
- 34.If JUMP is written as HSKN, how is LAMP written in the same code? (a) NCOR (b) KZLO (c) JYKN (d) IXJM
- 35.If JUMP is written as HSKN, how is CAKE written in the same code? (a) AYIC (b) ZXHB (c) BZJD (d) ECMG
- 36.If TOYS is written as SYOT, how is CAT written in the same code? (a) SZB (b) TAC (c) UBD (d) DBU
- 37.If PARK is written as KRAP, how is CAKE written in the same code? (a) DJZB (b) FLBD (c) DBLF (d) EKAC
- 38.If CAT is written as UBD, how is PARK written in the same code? (a) KRAP (b) QBSL (c) JQZO (d) LSBQ
- 39.If HAND is written as IBOE, how is PARK written in the same code? (a) LSBQ (b) QBSL (c) RCTM (d) OZQJ
- 40.If DOG is written as FNC, how is WIND written in the same code? (a) CMHV (b) EOJX (c) VHMC (d) DNIW
Answer key
- JHSD
- IZRM
- HSIF
- IZRM
- SHQ
- YLZG
- PYGL
- ANZS
- AZKK
- NUS
- TVO
- DDQS
- EDOO
- QFNK
- UGLB
- ERDW
- PLON
- AMJB
- ETIK
- XJOE
- CBMM
- KGJI
- KVM
- FDW
- DRMW
- GORF
- HSRK
- WUHH
- GJTI
- FQI
- KLIM
- SZMW
- LTFE
- JYKN
- AYIC
- TAC
- EKAC
- LSBQ
- QBSL
- CMHV
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