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 PEN is written as NEP, how is PARK written in the same code? (a) LSBQ (b) KRAP (c) QBSL (d) JQZO
- 2.If BALL is written as YZOO, how is CAT written in the same code? (a) YAH (b) DBU (c) XZG (d) WYF
- 3.If STAR is written as QZSR, how is GOLD written in the same code? (a) EMPH (b) FNKC (c) DLOG (d) CKNF
- 4.If BELL is written as YVOO, how is CAT written in the same code? (a) DBU (b) WYF (c) XZG (d) YAH
- 5.If MILK is written as JKHL, how is CAT written in the same code? (a) BZS (b) SZB (c) UBD (d) TAC
- 6.If NEST is written as TSEN, how is JUMP written in the same code? (a) QNVK (b) PMUJ (c) OLTI (d) KVNQ
- 7.If BOOK is written as JNNA, how is PARK written in the same code? (a) KRAP (b) JQZO (c) OZQJ (d) LSBQ
- 8.If BELL is written as YVOO, how is PEN written in the same code? (a) LWN (b) JUL (c) KVM (d) QFO
- 9.If KITE is written as PRGV, how is TREE written in the same code? (a) FHUU (b) HJWW (c) GIVV (d) USFF
- 10.If DESK is written as KSED, how is JUMP written in the same code? (a) KVNQ (b) QNVK (c) OLTI (d) PMUJ
- 11.If SHIP is written as HSRK, how is PEN written in the same code? (a) JUL (b) KVM (c) LWN (d) QFO
- 12.If MILK is written as LMJN, how is FROG written in the same code? (a) GORF (b) HPSG (c) FNQE (d) GSPH
- 13.If DESK is written as CDRJ, how is STAR written in the same code? (a) QRYP (b) TUBS (c) RSZQ (d) STAR
- 14.If SHIP is written as RKJU, how is BOOK written in the same code? (a) IMMZ (b) DQQM (c) KOOB (d) MQQD
- 15.If TREE is written as DDQS, how is WIND written in the same code? (a) EOJX (b) DNIW (c) VHMC (d) CMHV
- 16.If GOLD is written as TLOW, how is RAIN written in the same code? (a) SBJO (b) IZRM (c) JASN (d) HYQL
- 17.If PEN is written as NEP, how is MILK written in the same code? (a) NJML (b) JKHL (c) KLIM (d) LMJN
- 18.If BALL is written as DCNN, how is NEST written in the same code? (a) QHVW (b) LCQR (c) PGUV (d) OFTU
- 19.If FISH is written as GJTI, how is DRUM written in the same code? (a) ESVN (b) FTWO (c) CQTL (d) NVSE
- 20.If BELL is written as KKDA, how is KITE written in the same code? (a) DSHJ (b) JHSD (c) ETIK (d) FUJL
- 21.If CAKE is written as EKAC, how is SUN written in the same code? (a) TVO (b) NUS (c) OVT (d) MTR
- 22.If LION is written as NOIL, how is DESK written in the same code? (a) EFTL (b) LTFE (c) JRDC (d) KSED
- 23.If LAMP is written as OZNK, how is BOOK written in the same code? (a) CPPL (b) XKKO (c) ZMMQ (d) YLLP
- 24.If COLD is written as DLOC, how is BALL written in the same code? (a) KKZA (b) LLAB (c) MMBC (d) CBMM
- 25.If CAKE is written as AYIC, how is TREE written in the same code? (a) QOBB (b) SQDD (c) RPCC (d) VTGG
- 26.If PEN is written as PGR, how is WIND written in the same code? (a) BLGU (b) DNIW (c) FPKY (d) YKPF
- 27.If TREE is written as EERT, how is DOG written in the same code? (a) GOD (b) FNC (c) HPE (d) EPH
- 28.If JUMP is written as LWOR, how is PARK written in the same code? (a) SDUN (b) RCTM (c) NYPI (d) QBSL
- 29.If BALL is written as DCNN, how is TOYS written in the same code? (a) RMWQ (b) WRBV (c) UPZT (d) VQAU
- 30.If LION is written as OLRQ, how is FROG written in the same code? (a) IURJ (b) JVSK (c) COLD (d) HTQI
- 31.If CAT is written as TAC, how is MILK written in the same code? (a) NJML (b) KLIM (c) JKHL (d) LMJN
- 32.If DOG is written as BME, how is PARK written in the same code? (a) NYPI (b) MXOH (c) OZQJ (d) RCTM
- 33.If DRUM is written as WIFN, how is HAND written in the same code? (a) SZMW (b) TANX (c) RYLV (d) IBOE
- 34.If STAR is written as VWDU, how is FROG written in the same code? (a) HTQI (b) JVSK (c) COLD (d) IURJ
- 35.If MILK is written as KLIM, how is RAIN written in the same code? (a) MHZQ (b) SBJO (c) NIAR (d) OJBS
- 36.If RAIN is written as NIAR, how is SUN written in the same code? (a) MTR (b) OVT (c) NUS (d) TVO
- 37.If HAND is written as KDQG, how is RAIN written in the same code? (a) TCKP (b) VEMR (c) OXFK (d) UDLQ
- 38.If FISH is written as HSIF, how is LAMP written in the same code? (a) QNBM (b) OLZK (c) PMAL (d) MBNQ
- 39.If LION is written as NOIL, how is FROG written in the same code? (a) GORF (b) FNQE (c) GSPH (d) HPSG
- 40.If HAND is written as EOBI, how is BALL written in the same code? (a) LLAB (b) CBMM (c) KKZA (d) MMBC
Answer key
- KRAP
- XZG
- CKNF
- XZG
- SZB
- PMUJ
- JQZO
- KVM
- GIVV
- PMUJ
- KVM
- HPSG
- RSZQ
- MQQD
- CMHV
- IZRM
- KLIM
- PGUV
- ESVN
- DSHJ
- NUS
- KSED
- YLLP
- LLAB
- RPCC
- FPKY
- GOD
- RCTM
- VQAU
- IURJ
- KLIM
- NYPI
- SZMW
- IURJ
- NIAR
- NUS
- UDLQ
- PMAL
- GORF
- MMBC
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