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Number-Letter Codes - Beginner-Intermediate Level: sum codes BEGINNER-INTERMEDIATE

Ready to master number-letter codes? This benchmark test features 20 beginner-intermediate-level challenges. Worksheet 12 of 30 sharpens your sum codes skills. Master letter value codes, numeric equivalents, alphabet numbering through guided practice. Perfect for developing test preparation.

📝 Worksheet 12 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 12 of 30 (40% complete)

Question 1

For 'MNO', 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:M→13, Pos2:N→N, Pos3:O→15 → 13N15
position, pattern, mixed

Question 2

If letters are coded as (position mod 9), 'NUMBER' becomes?
Modular coding: N=14%9=5, U=21%9=3, M=13%9=4, B=2%9=2, E=5%9=5, R=18%9=0 → concatenated = 534250
modular, advanced

Question 3

If each letter is shifted forward by 1 positions (A→B), what is 'BUS' coded as?
Shift coding: B→C(+1), U→V(+1), S→T(+1) → CVT
shift, caesar, cipher

Question 4

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

Question 5

If letters are coded as (position mod 5), 'WORLD' becomes?
Modular coding: W=23%5=3, O=15%5=0, R=18%5=3, L=12%5=2, D=4%5=4 → concatenated = 30324
modular, advanced

Question 6

If A=26, B=25, C=24... Z=1 (reverse order), then 'AXE' is coded as?
Reverse coding: A=26 + X=3 + E=22 → concatenated = 26322
reverse, sequence

Question 7

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 8

For 'BDF', find the differences between consecutive letter positions (A=1,B=2...). Format as comma-separated values.
Positions: [2, 4, 6] → Differences: [2, 2]
difference, sequence, pattern

Question 9

If letters are coded as (position mod 9), 'WORLD' becomes?
Modular coding: W=23%9=5, O=15%9=6, R=18%9=0, L=12%9=3, D=4%9=4 → concatenated = 56034
modular, advanced

Question 10

If A=1, B=1, C=2, D=3, E=5, F=8... (Fibonacci sequence), what is 'BIRD' coded as?
Fibonacci coding: B=1, I=34, R=2584, D=3 → concatenated = 13425843
fibonacci, sequence, advanced

Question 11

If letters are coded as (position mod 7), 'HELLO' becomes?
Modular coding: H=8%7=1, E=5%7=5, L=12%7=5, L=12%7=5, O=15%7=1 → concatenated = 15551
modular, advanced

Question 12

If letters are coded as (position mod 9), 'ALPHABET' becomes?
Modular coding: A=1%9=1, L=12%9=3, P=16%9=7, H=8%9=8, A=1%9=1, B=2%9=2, E=5%9=5, T=20%9=2 → concatenated = 13781252
modular, advanced

Question 13

If A=2, B=3, C=5, D=7, E=11... (prime numbers in order), what is 'CAT' coded as?
Prime coding: C→5, A→2, T→71 → concatenated = 5271
prime, numbers, advanced

Question 14

If each letter is coded as its ASCII value (A=65, B=66...), what is 'CAT' coded as?
ASCII coding: C=67, A=65, T=84 → concatenated = 676584
ascii, computer

Question 15

If A=1, B=1, C=2, D=3, E=5, F=8... (Fibonacci sequence), what is 'BIRD' coded as?
Fibonacci coding: B=1, I=34, R=2584, D=3 → concatenated = 13425843
fibonacci, sequence, advanced

Question 16

If A=1, B=2, C=3... Z=26, then 'CAT' is coded as?
Letter to number: C=3 + A=1 + T=20 → concatenated = 3120
basic, sequence

Question 17

If a word's code is the product of its letter positions, what is 'BAD's code?
Product calculation: B=2 × A=1 × D=4 = 8
product, arithmetic

Question 18

If A=2, B=3, C=5, D=7, E=11... (prime numbers in order), what is 'BIRD' coded as?
Prime coding: B→3, I→23, R→61, D→7 → concatenated = 323617
prime, numbers, advanced

Question 19

If letters are coded as 5-bit binary (A=1=00001, B=2=00010...), 'FISH' is coded as?
Binary coding: F=6=00110, I=9=01001, S=19=10011, H=8=01000 → concatenated = 00110010011001101000
binary, advanced

Question 20

For 'JKL', 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:J→10, Pos2:K→K, Pos3:L→12 → 10K12
position, pattern, mixed
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