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 DRUM is written as GUXP, how is TREE written in the same code? (a) XVII (b) QOBB (c) WUHH (d) VTGG
- 2.If CAT is written as TAC, how is NEST written in the same code? (a) TSEN (b) OFTU (c) SRDM (d) UTFO
- 3.If COLD is written as XLOW, how is PEN written in the same code? (a) LWN (b) JUL (c) KVM (d) QFO
- 4.If NEST is written as TSEN, how is DESK written in the same code? (a) LTFE (b) KSED (c) EFTL (d) JRDC
- 5.If SUN is written as QSL, how is HAND written in the same code? (a) GZMC (b) JCPF (c) EXKA (d) FYLB
- 6.If CAKE is written as GMCE, how is MILK written in the same code? (a) MNKO (b) OKNM (c) IJGK (d) KLIM
- 7.If NEST is written as TSEN, how is STAR written in the same code? (a) RATS (b) TUBS (c) SBUT (d) QZSR
- 8.If SHIP is written as PIHS, how is LION written in the same code? (a) MJPO (b) NOIL (c) OPJM (d) MNHK
- 9.If WIND is written as DRMW, how is BELL written in the same code? (a) CFMM (b) ZWPP (c) YVOO (d) XUNN
- 10.If MOON is written as NOOM, how is PEN written in the same code? (a) QFO (b) NEP (c) OFQ (d) MDO
- 11.If FROG is written as DPME, how is HAND written in the same code? (a) FYLB (b) EXKA (c) JCPF (d) GZMC
- 12.If KITE is written as FUJL, how is BALL written in the same code? (a) KKZA (b) CBMM (c) LLAB (d) MMBC
- 13.If GOLD is written as DLOG, how is FISH written in the same code? (a) HSIF (b) ITJG (c) GJTI (d) GRHE
- 14.If MILK is written as LHKJ, how is TOYS written in the same code? (a) RMWQ (b) UPZT (c) SNXR (d) TOYS
- 15.If BOOK is written as JNNA, how is JUMP written in the same code? (a) ITLO (b) PMUJ (c) OLTI (d) QNVK
- 16.If WIND is written as YKPF, how is LAMP written in the same code? (a) JYKN (b) MBNQ (c) ODPS (d) NCOR
- 17.If MOON is written as KMML, how is LAMP written in the same code? (a) KZLO (b) NCOR (c) JYKN (d) IXJM
- 18.If CAT is written as XZG, how is COLD written in the same code? (a) DPME (b) YMPX (c) XLOW (d) WKNV
- 19.If NEST is written as SRDM, how is BOOK written in the same code? (a) JNNA (b) LPPC (c) KOOB (d) ANNJ
- 20.If NEST is written as TSEN, how is FROG written in the same code? (a) GSPH (b) GORF (c) FNQE (d) HPSG
- 21.If GOLD is written as DLOG, how is HAND written in the same code? (a) DNAH (b) CMZG (c) IBOE (d) EOBI
- 22.If FROG is written as GSPH, how is HAND written in the same code? (a) JCPF (b) EOBI (c) GZMC (d) IBOE
- 23.If JUMP is written as PMUJ, how is BOOK written in the same code? (a) KOOB (b) CPPL (c) JNNA (d) LPPC
- 24.If MOON is written as PRRQ, how is BALL written in the same code? (a) FEPP (b) DCNN (c) YXII (d) EDOO
- 25.If CAKE is written as EKAC, how is DESK written in the same code? (a) JRDC (b) EFTL (c) LTFE (d) KSED
- 26.If PARK is written as KRAP, how is CAT written in the same code? (a) DBU (b) SZB (c) TAC (d) UBD
- 27.If PEN is written as KVM, how is BOAT written in the same code? (a) YLZG (b) CPBU (c) XKYF (d) ZMAH
- 28.If STAR is written as UVCT, how is HAND written in the same code? (a) KDQG (b) JCPF (c) FYLB (d) IBOE
- 29.If NEST is written as UTFO, how is PEN written in the same code? (a) MDO (b) NEP (c) OFQ (d) QFO
- 30.If CAT is written as BZS, how is RAIN written in the same code? (a) RAIN (b) SBJO (c) QZHM (d) PYGL
- 31.If SHIP is written as HSRK, how is KITE written in the same code? (a) QSHW (b) OQFU (c) PRGV (d) LJUF
- 32.If NEST is written as SRDM, how is KITE written in the same code? (a) JHSD (b) DSHJ (c) FUJL (d) ETIK
- 33.If NEST is written as LCQR, how is GOLD written in the same code? (a) DLIA (b) IQNF (c) EMJB (d) FNKC
- 34.If TOYS is written as GLBH, how is BOAT written in the same code? (a) ZMAH (b) XKYF (c) YLZG (d) CPBU
- 35.If WIND is written as UGLB, how is GOLD written in the same code? (a) IQNF (b) FNKC (c) DLIA (d) EMJB
- 36.If DESK is written as KSED, how is PARK written in the same code? (a) QBSL (b) LSBQ (c) JQZO (d) KRAP
- 37.If WIND is written as DRMW, how is TREE written in the same code? (a) FHUU (b) GIVV (c) HJWW (d) USFF
- 38.If GOLD is written as CKNF, how is MILK written in the same code? (a) KLIM (b) LHKJ (c) LMJN (d) JKHL
- 39.If SUN is written as OVT, how is TREE written in the same code? (a) USFF (b) EERT (c) FFSU (d) DDQS
- 40.If JUMP is written as PMUJ, how is BOAT written in the same code? (a) CPBU (b) TAOB (c) SZNA (d) UBPC
Answer key
- WUHH
- TSEN
- KVM
- KSED
- FYLB
- MNKO
- RATS
- NOIL
- YVOO
- NEP
- FYLB
- MMBC
- HSIF
- SNXR
- OLTI
- NCOR
- JYKN
- XLOW
- JNNA
- GORF
- DNAH
- IBOE
- KOOB
- EDOO
- KSED
- TAC
- YLZG
- JCPF
- OFQ
- QZHM
- PRGV
- DSHJ
- EMJB
- YLZG
- EMJB
- KRAP
- GIVV
- JKHL
- FFSU
- TAOB
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