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Number-Letter Codes - Beginner-Intermediate Level: alphabet numbering BEGINNER-INTERMEDIATE

Quick intensive drill ★ session: 20 beginner-intermediate-level number-letter codes questions. Worksheet 7 of 30 - Focus: alphabet numbering. Practice alphabet numbering, code conversion, dual coding with instant feedback. Great for developing students needing building on fundamentals with moderate challenges practice.

📝 Worksheet 7 of 30 • 20 questions • ⏱️ Estimated time: 20 minutes • 🎯 Beginner-intermediate level

What you'll learn in this worksheet:
Your progress through Number-Letter Codes
Worksheet 7 of 30 (23% complete)

Question 1

For 'PRS', find the differences between consecutive letter positions (A=1,B=2...). Format as comma-separated values.
Positions: [16, 18, 19] → Differences: [2, 1]
difference, sequence, pattern

Question 2

If a word's code is the product of its letter positions, what is 'BEAR's code?
Product calculation: B=2 × E=5 × A=1 × R=18 = 180
product, arithmetic

Question 3

For 'YZ', odd positions (1st,3rd,5th...) are coded as their position numbers, even positions are shifted by 1 letter forward. What is the code?
Odd/Even coding: Pos1:Y→25, Pos2:Z→@ → 25@
position, pattern, mixed

Question 4

If each letter is coded as the square of its position (A=1→1, B=2→4, C=3→9...), what is 'ACE' coded as?
Square coding: A=1²=1, C=3²=9, E=5²=25 → concatenated = 1925
square, exponential, advanced

Question 5

For 'EGG', odd positions use reverse coding, even positions use reverse coding. What is the result?
Alternating coding: E→22(rev), G→20(rev), G→20(rev) → 222020
alternating, mixed, advanced

Question 6

If each letter is shifted forward by 4 positions (A→E), what is 'BOOK' coded as?
Shift coding: B→F(+4), O→S(+4), O→S(+4), K→O(+4) → FSSO
shift, caesar, cipher

Question 7

If each letter is coded as the sum of digits of its position (A=1→1, B=2→2, ..., J=10→1+0=1...), what is 'BED' coded as?
Digit sum coding: B=2→digit_sum=2, E=5→digit_sum=5, D=4→digit_sum=4 → concatenated = 254
digits, sum, pattern

Question 8

If A=1, B=2, C=3... Z=26, then 'BED' is coded as?
Letter to number: B=2 + E=5 + D=4 → concatenated = 254
basic, sequence

Question 9

If letters are coded as 5-bit binary (A=1=00001, B=2=00010...), 'BED' is coded as?
Binary coding: B=2=00010, E=5=00101, D=4=00100 → concatenated = 000100010100100
binary, advanced

Question 10

If vowels (A,E,I,O,U) are coded as 'V' and consonants as 'C', what is the code for 'EAGLE'?
Vowel/Consonant coding: E→V, A→V, G→C, L→C, E→V → VVCCV
vowel, consonant, pattern

Question 11

If a word's code is the sum of its letter positions (A=1,B=2...), what is 'LION's code?
Sum calculation: L=12 + I=9 + O=15 + N=14 = 50
sum, arithmetic

Question 12

If each letter is coded as the sum of digits of its position (A=1→1, B=2→2, ..., J=10→1+0=1...), what is 'EGG' coded as?
Digit sum coding: E=5→digit_sum=5, G=7→digit_sum=7, G=7→digit_sum=7 → concatenated = 577
digits, sum, pattern

Question 13

If a word's code is the product of its letter positions, what is 'BED's code?
Product calculation: B=2 × E=5 × D=4 = 40
product, arithmetic

Question 14

For 'ABC', find the differences between consecutive letter positions (A=1,B=2...). Format as comma-separated values.
Positions: [1, 2, 3] → Differences: [1, 1]
difference, sequence, pattern

Question 15

If A=26, B=25, C=24... Z=1 (reverse order), then 'ANT' is coded as?
Reverse coding: A=26 + N=13 + T=7 → concatenated = 26137
reverse, sequence

Question 16

If letters are coded as (position mod 8), 'HELLO' becomes?
Modular coding: H=8%8=0, E=5%8=5, L=12%8=4, L=12%8=4, O=15%8=7 → concatenated = 05447
modular, advanced

Question 17

If vowels (A,E,I,O,U) are coded as 'V' and consonants as 'C', what is the code for 'TIGER'?
Vowel/Consonant coding: T→C, I→V, G→C, E→V, R→C → CVCVC
vowel, consonant, pattern

Question 18

If A=1, B=2, C=3... Z=26, then 'FISH' is coded as?
Letter to number: F=6 + I=9 + S=19 + H=8 → concatenated = 69198
basic, sequence

Question 19

For 'ABC', find the differences between consecutive letter positions (A=1,B=2...). Format as comma-separated values.
Positions: [1, 2, 3] → Differences: [1, 1]
difference, sequence, pattern

Question 20

If each letter is shifted forward by 5 positions (A→F), what is 'CAR' coded as?
Shift coding: C→H(+5), A→F(+5), R→W(+5) → HFW
shift, caesar, cipher
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