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 HAND is written as DNAH, how is GOLD written in the same code? (a) HPME (b) EMPH (c) DLOG (d) CKNF
- 2.If HAND is written as DNAH, how is BOOK written in the same code? (a) JNNA (b) KOOB (c) CPPL (d) LPPC
- 3.If MILK is written as MNKO, how is TOYS written in the same code? (a) VQAU (b) SYOT (c) QWMR (d) UAQV
- 4.If STAR is written as RATS, how is RAIN written in the same code? (a) SBJO (b) OJBS (c) MHZQ (d) NIAR
- 5.If PARK is written as KZIP, how is BOOK written in the same code? (a) XKKO (b) YLLP (c) ZMMQ (d) CPPL
- 6.If RAIN is written as IZRM, how is BELL written in the same code? (a) YVOO (b) XUNN (c) CFMM (d) ZWPP
- 7.If TREE is written as FFSU, how is MILK written in the same code? (a) KLIM (b) NJML (c) LMJN (d) JKHL
- 8.If MILK is written as KLIM, how is COLD written in the same code? (a) DLOC (b) CKNB (c) EMPD (d) DPME
- 9.If DRUM is written as FTWO, how is BALL written in the same code? (a) CBMM (b) EDOO (c) ZYJJ (d) DCNN
- 10.If MILK is written as JKHL, how is DESK written in the same code? (a) LTFE (b) KSED (c) CDRJ (d) JRDC
- 11.If DOG is written as GOD, how is PARK written in the same code? (a) QBSL (b) KRAP (c) JQZO (d) LSBQ
- 12.If WIND is written as DRMW, how is KITE written in the same code? (a) PRGV (b) QSHW (c) LJUF (d) OQFU
- 13.If HAND is written as FPCJ, how is GOLD written in the same code? (a) DLOG (b) FNQI (c) BJME (d) IQNF
- 14.If MILK is written as PLON, how is TREE written in the same code? (a) VTGG (b) WUHH (c) XVII (d) QOBB
- 15.If MILK is written as NROP, how is COLD written in the same code? (a) DPME (b) YMPX (c) WKNV (d) XLOW
- 16.If FROG is written as UILT, how is JUMP written in the same code? (a) QFNK (b) RGOL (c) PEMJ (d) KVNQ
- 17.If MOON is written as NLLM, how is COLD written in the same code? (a) XLOW (b) DPME (c) YMPX (d) WKNV
- 18.If PARK is written as JQZO, how is WIND written in the same code? (a) EOJX (b) CMHV (c) DNIW (d) VHMC
- 19.If COLD is written as XLOW, how is TOYS written in the same code? (a) HMCI (b) UPZT (c) GLBH (d) FKAG
- 20.If SHIP is written as OHGR, how is TREE written in the same code? (a) SQDD (b) FFSU (c) EERT (d) DDQS
- 21.If BALL is written as NNCD, how is DRUM written in the same code? (a) FTWO (b) KSPB (c) MURD (d) OWTF
- 22.If SHIP is written as HSRK, how is CAKE written in the same code? (a) DBLF (b) WYOU (c) XZPV (d) YAQW
- 23.If BELL is written as LLEB, how is NEST written in the same code? (a) UTFO (b) SRDM (c) TSEN (d) OFTU
- 24.If WIND is written as DRMW, how is PARK written in the same code? (a) LAJQ (b) QBSL (c) JYHO (d) KZIP
- 25.If GOLD is written as TLOW, how is BALL written in the same code? (a) ZAPP (b) YZOO (c) CBMM (d) XYNN
- 26.If PEN is written as QFO, how is DESK written in the same code? (a) FGUM (b) CDRJ (c) LTFE (d) EFTL
- 27.If MILK is written as NROP, how is MOON written in the same code? (a) NPPO (b) OMMN (c) NLLM (d) MKKL
- 28.If HAND is written as CMZG, how is LAMP written in the same code? (a) QNBM (b) PMAL (c) KZLO (d) OLZK
- 29.If CAKE is written as XZPV, how is DRUM written in the same code? (a) XJGO (b) VHEM (c) ESVN (d) WIFN
- 30.If SUN is written as MTR, how is CAT written in the same code? (a) UBD (b) SZB (c) TAC (d) BZS
- 31.If LION is written as NOIL, how is LAMP written in the same code? (a) QNBM (b) OLZK (c) MBNQ (d) PMAL
- 32.If MOON is written as NOOM, how is LION written in the same code? (a) MNHK (b) MJPO (c) OPJM (d) NOIL
- 33.If DOG is written as GOD, how is STAR written in the same code? (a) RATS (b) TUBS (c) SBUT (d) QZSR
- 34.If STAR is written as RATS, how is LAMP written in the same code? (a) OLZK (b) PMAL (c) QNBM (d) MBNQ
- 35.If STAR is written as UVCT, how is COLD written in the same code? (a) AMJB (b) DPME (c) EQNF (d) FROG
- 36.If FISH is written as ITJG, how is BOAT written in the same code? (a) CPBU (b) SZNA (c) UBPC (d) TAOB
- 37.If FISH is written as GJTI, how is LION written in the same code? (a) KHNM (b) NKQP (c) OPJM (d) MJPO
- 38.If COLD is written as XLOW, how is GOLD written in the same code? (a) SKNV (b) HPME (c) TLOW (d) UMPX
- 39.If STAR is written as TCVU, how is RAIN written in the same code? (a) LGYP (b) PKCT (c) TCKP (d) NIAR
- 40.If BOOK is written as YLLP, how is FROG written in the same code? (a) GSPH (b) UILT (c) THKS (d) VJMU
Answer key
- DLOG
- KOOB
- UAQV
- NIAR
- YLLP
- YVOO
- LMJN
- DLOC
- DCNN
- JRDC
- KRAP
- PRGV
- FNQI
- WUHH
- XLOW
- QFNK
- XLOW
- CMHV
- GLBH
- DDQS
- OWTF
- XZPV
- TSEN
- KZIP
- YZOO
- EFTL
- NLLM
- OLZK
- WIFN
- SZB
- PMAL
- NOIL
- RATS
- PMAL
- EQNF
- UBPC
- MJPO
- TLOW
- PKCT
- UILT
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