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Matrix Coding - Beginner Level: position coding BEGINNER

Level up your matrix coding skills with this entry level practice. 20 beginner-level problems await in Worksheet 4 of 30. Focus area: position coding. Learn position coding, matrix manipulation, cell relationships through systematic practice. Designed for entry-level learners seeking foundational concepts and basic patterns.

📝 Worksheet 4 of 30 • 20 questions • ⏱️ Estimated time: 20 minutes • 🎯 Beginner level

What you'll learn in this worksheet:
Your progress through Matrix Coding
Worksheet 4 of 30 (13% complete)

Question 1

Matrix A: 8 7 4 6 9 8 6 2 3 Matrix B: 9 3 3 5 3 6 8 5 1 What is the result of matrix addition (element-wise)?
Performing element-wise addition:
Row1: 8+9=17 + 7+3=10 + 4+3=7
Row2: 6+5=11 + 9+3=12 + 8+6=14
Row3: 6+8=14 + 2+5=7 + 3+1=4
arithmetic, operations, calculation

Question 2

In matrix: 1 2 3 4 5 6 7 8 9 What is the sum of anti-diagonal?
The sum of anti-diagonal: 3 + 5 + 7 = 15
numbers, matrix, arithmetic

Question 3

If letters are at coordinates A(1,1), B(1,2), C(1,3), D(1,4), E(2,1), F(2,2), G(2,3), H(2,4), I(3,1), J(3,2), K(3,3), L(3,4), M(4,1), N(4,2), O(4,3), P(4,4), then 'DATA' coordinates are?
Coordinate mapping: D(1, 4) A(1, 1) A(1, 1)
coordinates, position, mapping

Question 4

In matrix: 1 2 3 4 5 6 7 8 9 What is the sum of middle row?
The sum of middle row: 4 + 5 + 6 = 15
numbers, matrix, arithmetic

Question 5

In the 4×4 matrix: A B C D E F G H I J K L M N O P If we follow the anti-diagonal path (Start at (1,4) and move diagonally down-left), what word do we get?
Following the anti-diagonal path: (1,4)=D (2,3)=G (3,2)=J (4,1)=M → DGJM
path, navigation, reading

Question 6

If letters are at coordinates A(1,1), B(1,2), C(1,3), D(1,4), E(2,1), F(2,2), G(2,3), H(2,4), I(3,1), J(3,2), K(3,3), L(3,4), M(4,1), N(4,2), O(4,3), P(4,4), then 'TEXT' coordinates are?
Coordinate mapping: E(2, 1)
coordinates, position, mapping

Question 7

In a 5×5 matrix: Row1: A B C D E Row2: F G H I J Row3: K L M N O Row4: P Q R S T Row5: U V W X Y 'MATH' is coded as (row,col) combination. What is the code?
Matrix positions: M=(3,3) A=(1,1) T=(4,5) H=(2,3) → Combined code: 33114523
matrix, position, coding

Question 8

If letters are at coordinates A(1,1), B(1,2), C(1,3), D(1,4), E(2,1), F(2,2), G(2,3), H(2,4), I(3,1), J(3,2), K(3,3), L(3,4), M(4,1), N(4,2), O(4,3), P(4,4), then 'DATA' coordinates are?
Coordinate mapping: D(1, 4) A(1, 1) A(1, 1)
coordinates, position, mapping

Question 9

In matrix: 3 8 1 5 2 7 9 4 6 Which column has the maximum sum?
Column sums: Col1=17, Col2=14, Col3=14. Maximum is Column 1 with sum 17
operations, analysis, comparison

Question 10

If letters are at coordinates A(1,1), B(1,2), C(1,3), D(1,4), E(2,1), F(2,2), G(2,3), H(2,4), I(3,1), J(3,2), K(3,3), L(3,4), M(4,1), N(4,2), O(4,3), P(4,4), then 'CODE' coordinates are?
Coordinate mapping: C(1, 3) O(4, 3) D(1, 4) E(2, 1)
coordinates, position, mapping

Question 11

If A=0001, B=0010, C=0011, D=0100, E=0101, F=0110, G=0111, H=1000, I=1001, J=1010, K=1011, L=1100 (binary sequence 1-12), then 'BAD' in binary?
Binary coding: B=0010 + A=0001 + D=0100 = 001000010100
binary, advanced, encoding

Question 12

In matrix: 3 8 1 5 2 7 9 4 6 Which row has the maximum sum?
Row sums: Row1=12, Row2=14, Row3=19. Maximum is Row 3 with sum 19
operations, analysis, comparison

Question 13

If A=0001, B=0010, C=0011, D=0100, E=0101, F=0110, G=0111, H=1000, I=1001, J=1010, K=1011, L=1100 (binary sequence 1-12), then 'BED' in binary?
Binary coding: B=0010 + E=0101 + D=0100 = 001001010100
binary, advanced, encoding

Question 14

Find the missing element (?) in this matrix pattern: A C E C E G E G ? What should replace the '?'?
Pattern: alternating letters pattern

Step 1: First row: A(1), C(3), E(5) - skip 1 letter
Step 2: Second row: C(3), E(5), G(7) - skip 1 letter
Step 3: Third row: E(5), G(7), ?
Step 4: Next letter after G(7) skipping one is I(9)
Pattern: Each cell increases by 2 alphabet positions

Answer: I
pattern, completion, reasoning

Question 15

In pattern matrix: * @ # $ @ # $ * # $ * @ $ * @ # Code 'BADC' using A=col1, B=col2, C=col3, D=col4, row advances sequentially (row0, row1, row2, row3, then repeats)?
Coding process: B→@ A→@ D→@ C→@ = @@@@
pattern, symbols, coding

Question 16

In pattern matrix: * @ # $ @ # $ * # $ * @ $ * @ # Code 'CDAB' using A=col1, B=col2, C=col3, D=col4, row advances sequentially (row0, row1, row2, row3, then repeats)?
Coding process: C→# D→* A→# B→* = #*#*
pattern, symbols, coding

Question 17

In a 6×6 matrix (row0-5, col0-5) containing letters A-Z and digits 0-9 in row-major order, encode 'PUZZLE' by giving row and column numbers concatenated.
Position mapping: P→(2,3) U→(3,2) Z→(4,1) Z→(4,1) L→(1,5) E→(0,4) → 233241411504
cipher, position, encoding

Question 18

Original matrix: A B C D E F G H I After rotated-90 transformation, the matrix becomes:
Applying rotated-90 transformation yields:
G D A
H E B
I F C
transformation, geometry, rotation

Question 19

In matrix: 1 2 3 4 5 6 7 8 9 What is the sum of main diagonal?
The sum of main diagonal: 1 + 5 + 9 = 15
numbers, matrix, arithmetic

Question 20

In the 4×4 matrix: A B C D E F G H I J K L M N O P If we follow the bottom row path (Start at (4,1) and move right), what word do we get?
Following the bottom row path: (4,1)=M (4,2)=N (4,3)=O (4,4)=P → MNOP
path, navigation, reading
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