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 STAR is written as HGZI, how is MILK written in the same code? (a) NROP (b) MQNO (c) NJML (d) OSPQ
- 2.If MILK is written as NROP, how is TREE written in the same code? (a) FHUU (b) GIVV (c) HJWW (d) USFF
- 3.If FISH is written as GRHE, how is MILK written in the same code? (a) KLIM (b) JKHL (c) LMJN (d) LHKJ
- 4.If CAT is written as UBD, how is KITE written in the same code? (a) LJUF (b) ETIK (c) DSHJ (d) FUJL
- 5.If KITE is written as PRGV, how is FROG written in the same code? (a) THKS (b) VJMU (c) GSPH (d) UILT
- 6.If DESK is written as BCQI, how is BALL written in the same code? (a) YXII (b) AZKK (c) ZYJJ (d) DCNN
- 7.If GOLD is written as TLOW, how is WIND written in the same code? (a) DRMW (b) XJOE (c) ESNX (d) CQLV
- 8.If SUN is written as NUS, how is HAND written in the same code? (a) EOBI (b) IBOE (c) CMZG (d) DNAH
- 9.If SUN is written as HFM, how is PARK written in the same code? (a) KZIP (b) QBSL (c) LAJQ (d) JYHO
- 10.If BOOK is written as ZMMI, how is LION written in the same code? (a) NKQP (b) KHNM (c) IFLK (d) JGML
- 11.If DRUM is written as GUXP, how is PEN written in the same code? (a) SHQ (b) RGP (c) MBK (d) TIR
- 12.If TREE is written as DDQS, how is DOG written in the same code? (a) FNC (b) GOD (c) CNF (d) HPE
- 13.If FROG is written as IQTH, how is RAIN written in the same code? (a) TCKP (b) PKCT (c) LGYP (d) NIAR
- 14.If MILK is written as MNKO, how is TREE written in the same code? (a) GGTV (b) VTGG (c) CCPR (d) EERT
- 15.If MOON is written as OQQP, how is DRUM written in the same code? (a) GUXP (b) BPSK (c) ESVN (d) FTWO
- 16.If SUN is written as NUS, how is KITE written in the same code? (a) LJUF (b) DSHJ (c) FUJL (d) ETIK
- 17.If MOON is written as NLLM, how is WIND written in the same code? (a) ESNX (b) DRMW (c) CQLV (d) XJOE
- 18.If LION is written as JGML, how is LAMP written in the same code? (a) JYKN (b) NCOR (c) KZLO (d) IXJM
- 19.If LAMP is written as MBNQ, how is DESK written in the same code? (a) LTFE (b) FGUM (c) EFTL (d) CDRJ
- 20.If BOAT is written as TAOB, how is BOOK written in the same code? (a) CPPL (b) LPPC (c) KOOB (d) JNNA
- 21.If GOLD is written as DLOG, how is CAKE written in the same code? (a) FLBD (b) DBLF (c) DJZB (d) EKAC
- 22.If CAT is written as BZS, how is FROG written in the same code? (a) FROG (b) GSPH (c) DPME (d) EQNF
- 23.If MOON is written as LNNM, how is LAMP written in the same code? (a) MBNQ (b) JYKN (c) KZLO (d) LAMP
- 24.If MOON is written as NOOM, how is BOAT written in the same code? (a) TAOB (b) CPBU (c) SZNA (d) UBPC
- 25.If SHIP is written as PIHS, how is MOON written in the same code? (a) NOOM (b) OPPN (c) MNNL (d) NPPO
- 26.If CAT is written as XZG, how is LAMP written in the same code? (a) PAOL (b) NYMJ (c) MBNQ (d) OZNK
- 27.If KITE is written as GVKM, how is RAIN written in the same code? (a) NIAR (b) PKCT (c) LGYP (d) TCKP
- 28.If FROG is written as IQTH, how is SHIP written in the same code? (a) RKJU (b) PIHS (c) NGFQ (d) UJKR
- 29.If BOOK is written as DQQM, how is DESK written in the same code? (a) BCQI (b) GHVN (c) FGUM (d) EFTL
- 30.If JUMP is written as PMUJ, how is CAKE written in the same code? (a) EKAC (b) FLBD (c) DJZB (d) DBLF
- 31.If BOAT is written as YLZG, how is DRUM written in the same code? (a) WIFN (b) XJGO (c) ESVN (d) VHEM
- 32.If GOLD is written as FNKC, how is BALL written in the same code? (a) ZYJJ (b) CBMM (c) AZKK (d) BALL
- 33.If DOG is written as GOD, how is KITE written in the same code? (a) DSHJ (b) FUJL (c) ETIK (d) LJUF
- 34.If BOOK is written as KOOB, how is HAND written in the same code? (a) IBOE (b) DNAH (c) EOBI (d) CMZG
- 35.If PEN is written as MDO, how is SUN written in the same code? (a) MTR (b) NUS (c) RTM (d) OVT
- 36.If PARK is written as JQZO, how is WIND written in the same code? (a) VHMC (b) CMHV (c) DNIW (d) EOJX
- 37.If BOAT is written as UBPC, how is NEST written in the same code? (a) UTFO (b) TSEN (c) SRDM (d) OFTU
- 38.If TOYS is written as GLBH, how is BOAT written in the same code? (a) XKYF (b) ZMAH (c) CPBU (d) YLZG
- 39.If COLD is written as EMPD, how is DOG written in the same code? (a) FNC (b) GOD (c) HPE (d) EPH
- 40.If NEST is written as TSEN, how is KITE written in the same code? (a) ETIK (b) FUJL (c) DSHJ (d) LJUF
Answer key
- NROP
- GIVV
- JKHL
- FUJL
- UILT
- ZYJJ
- DRMW
- DNAH
- KZIP
- JGML
- SHQ
- FNC
- PKCT
- GGTV
- FTWO
- ETIK
- DRMW
- JYKN
- EFTL
- KOOB
- EKAC
- EQNF
- KZLO
- TAOB
- NOOM
- OZNK
- PKCT
- RKJU
- FGUM
- EKAC
- WIFN
- AZKK
- ETIK
- DNAH
- MTR
- CMHV
- UTFO
- YLZG
- HPE
- ETIK
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