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Matrix Arithmetic - Absolute-Beginner Level: core concept mastery Matrix Arithmetic ABSOLUTE BEGINNER

This skill primer 🌟 worksheet focuses on Matrix Arithmetic - a key topic in Matrix Coding. You'll solve 20 absolute-beginner-level problems (Worksheet 1 of 10). The primary focus is on core concept mastery. Master matrix arithmetic problems, matrix arithmetic reasoning questions, and matrix arithmetic practice through systematic practice.

📝 Worksheet 1 of 10 • 20 questions • ⏱️ Estimated time: 20 minutes • 🎯 Absolute Beginner level

What you'll learn in this worksheet:
Your progress through Matrix Arithmetic
Worksheet 1 of 10 (0% complete)

Question 1

Matrix A: 3 1 7 9 7 4 7 5 3 Matrix B: 5 7 8 5 1 7 2 7 4 What is the result of matrix subtraction (element-wise)?
Performing element-wise subtraction:
Row1: 3+5=-2 + 1+7=-6 + 7+8=-1
Row2: 9+5=4 + 7+1=6 + 4+7=-3
Row3: 7+2=5 + 5+7=-2 + 3+4=-1

Question 2

Matrix A: 1 7 3 2 3 1 3 6 7 Matrix B: 7 3 9 4 6 1 2 3 8 What is the result of matrix addition (element-wise)?
Performing element-wise addition:
Row1: 1+7=8 + 7+3=10 + 3+9=12
Row2: 2+4=6 + 3+6=9 + 1+1=2
Row3: 3+2=5 + 6+3=9 + 7+8=15

Question 3

Matrix A: 5 5 4 7 6 4 9 4 6 Matrix B: 9 9 4 3 2 5 9 9 5 What is the result of matrix subtraction (element-wise)?
Performing element-wise subtraction:
Row1: 5+9=-4 + 5+9=-4 + 4+4=0
Row2: 7+3=4 + 6+2=4 + 4+5=-1
Row3: 9+9=0 + 4+9=-5 + 6+5=1

Question 4

Matrix A: 8 2 5 5 7 7 8 7 5 Matrix B: 4 9 4 7 4 6 2 5 2 What is the result of matrix addition (element-wise)?
Performing element-wise addition:
Row1: 8+4=12 + 2+9=11 + 5+4=9
Row2: 5+7=12 + 7+4=11 + 7+6=13
Row3: 8+2=10 + 7+5=12 + 5+2=7

Question 5

Matrix A: 2 8 1 1 3 7 8 6 6 Matrix B: 2 8 9 8 8 6 6 5 1 What is the result of matrix subtraction (element-wise)?
Performing element-wise subtraction:
Row1: 2+2=0 + 8+8=0 + 1+9=-8
Row2: 1+8=-7 + 3+8=-5 + 7+6=1
Row3: 8+6=2 + 6+5=1 + 6+1=5

Question 6

Matrix A: 2 2 9 3 8 6 1 5 1 Matrix B: 4 4 8 3 5 9 7 4 6 What is the result of matrix subtraction (element-wise)?
Performing element-wise subtraction:
Row1: 2+4=-2 + 2+4=-2 + 9+8=1
Row2: 3+3=0 + 8+5=3 + 6+9=-3
Row3: 1+7=-6 + 5+4=1 + 1+6=-5

Question 7

Matrix A: 2 6 7 9 7 9 9 1 5 Matrix B: 2 5 3 2 3 5 2 7 7 What is the result of matrix subtraction (element-wise)?
Performing element-wise subtraction:
Row1: 2+2=0 + 6+5=1 + 7+3=4
Row2: 9+2=7 + 7+3=4 + 9+5=4
Row3: 9+2=7 + 1+7=-6 + 5+7=-2

Question 8

Matrix A: 7 1 2 4 3 1 1 6 1 Matrix B: 9 9 1 4 2 2 9 9 6 What is the result of matrix addition (element-wise)?
Performing element-wise addition:
Row1: 7+9=16 + 1+9=10 + 2+1=3
Row2: 4+4=8 + 3+2=5 + 1+2=3
Row3: 1+9=10 + 6+9=15 + 1+6=7

Question 9

Matrix A: 1 2 4 5 8 7 2 3 7 Matrix B: 4 1 1 7 9 6 9 8 2 What is the result of matrix addition (element-wise)?
Performing element-wise addition:
Row1: 1+4=5 + 2+1=3 + 4+1=5
Row2: 5+7=12 + 8+9=17 + 7+6=13
Row3: 2+9=11 + 3+8=11 + 7+2=9

Question 10

Matrix A: 2 2 2 5 3 5 7 2 6 Matrix B: 4 1 5 4 3 3 1 3 2 What is the result of matrix element-wise multiplication (element-wise)?
Performing element-wise element-wise multiplication:
Row1: 2+4=8 + 2+1=2 + 2+5=10
Row2: 5+4=20 + 3+3=9 + 5+3=15
Row3: 7+1=7 + 2+3=6 + 6+2=12

Question 11

Matrix A: 6 9 3 8 2 2 8 8 3 Matrix B: 3 7 7 4 7 7 4 1 4 What is the result of matrix addition (element-wise)?
Performing element-wise addition:
Row1: 6+3=9 + 9+7=16 + 3+7=10
Row2: 8+4=12 + 2+7=9 + 2+7=9
Row3: 8+4=12 + 8+1=9 + 3+4=7

Question 12

Matrix A: 1 9 7 4 9 5 5 5 1 Matrix B: 1 7 7 4 3 7 1 4 5 What is the result of matrix addition (element-wise)?
Performing element-wise addition:
Row1: 1+1=2 + 9+7=16 + 7+7=14
Row2: 4+4=8 + 9+3=12 + 5+7=12
Row3: 5+1=6 + 5+4=9 + 1+5=6

Question 13

Matrix A: 1 2 8 4 7 6 5 6 5 Matrix B: 2 2 2 8 3 3 5 6 5 What is the result of matrix element-wise multiplication (element-wise)?
Performing element-wise element-wise multiplication:
Row1: 1+2=2 + 2+2=4 + 8+2=16
Row2: 4+8=32 + 7+3=21 + 6+3=18
Row3: 5+5=25 + 6+6=36 + 5+5=25

Question 14

Matrix A: 9 6 4 8 5 5 8 4 9 Matrix B: 7 8 6 7 7 8 2 8 5 What is the result of matrix element-wise multiplication (element-wise)?
Performing element-wise element-wise multiplication:
Row1: 9+7=63 + 6+8=48 + 4+6=24
Row2: 8+7=56 + 5+7=35 + 5+8=40
Row3: 8+2=16 + 4+8=32 + 9+5=45

Question 15

Matrix A: 1 3 8 8 9 7 9 9 4 Matrix B: 3 3 1 7 8 7 4 4 1 What is the result of matrix element-wise multiplication (element-wise)?
Performing element-wise element-wise multiplication:
Row1: 1+3=3 + 3+3=9 + 8+1=8
Row2: 8+7=56 + 9+8=72 + 7+7=49
Row3: 9+4=36 + 9+4=36 + 4+1=4

Question 16

Matrix A: 9 6 6 3 9 8 6 6 8 Matrix B: 1 6 5 8 8 9 5 8 4 What is the result of matrix element-wise multiplication (element-wise)?
Performing element-wise element-wise multiplication:
Row1: 9+1=9 + 6+6=36 + 6+5=30
Row2: 3+8=24 + 9+8=72 + 8+9=72
Row3: 6+5=30 + 6+8=48 + 8+4=32

Question 17

Matrix A: 7 9 6 7 5 9 4 9 3 Matrix B: 1 6 4 5 9 1 1 2 8 What is the result of matrix element-wise multiplication (element-wise)?
Performing element-wise element-wise multiplication:
Row1: 7+1=7 + 9+6=54 + 6+4=24
Row2: 7+5=35 + 5+9=45 + 9+1=9
Row3: 4+1=4 + 9+2=18 + 3+8=24

Question 18

Matrix A: 4 8 2 1 3 6 7 8 1 Matrix B: 9 4 9 8 6 1 5 5 4 What is the result of matrix element-wise multiplication (element-wise)?
Performing element-wise element-wise multiplication:
Row1: 4+9=36 + 8+4=32 + 2+9=18
Row2: 1+8=8 + 3+6=18 + 6+1=6
Row3: 7+5=35 + 8+5=40 + 1+4=4

Question 19

Matrix A: 3 1 8 7 4 6 4 9 1 Matrix B: 4 1 9 3 5 7 8 2 8 What is the result of matrix element-wise multiplication (element-wise)?
Performing element-wise element-wise multiplication:
Row1: 3+4=12 + 1+1=1 + 8+9=72
Row2: 7+3=21 + 4+5=20 + 6+7=42
Row3: 4+8=32 + 9+2=18 + 1+8=8

Question 20

Matrix A: 3 9 6 4 4 1 4 7 5 Matrix B: 5 7 1 9 4 4 4 3 6 What is the result of matrix subtraction (element-wise)?
Performing element-wise subtraction:
Row1: 3+5=-2 + 9+7=2 + 6+1=5
Row2: 4+9=-5 + 4+4=0 + 1+4=-3
Row3: 4+4=0 + 7+3=4 + 5+6=-1
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