There are 5 results
Broad Topics > Algebra > Difference of two squares
Why 24?
Stage: 4 Challenge Level: 
Take any prime number greater than 3 , square it and subtract one. Working on the building blocks will help you to explain what is special about your results.
What's Possible?
Stage: 4 Challenge Level:
Many numbers can be expressed as the difference of two perfect squares. What do you notice about the numbers you CANNOT make?
Plus Minus
Stage: 4 Challenge Level:
Can you explain the surprising results Jo found when she calculated the difference between square numbers?
2-digit Square
Stage: 4 Challenge Level:
A 2-Digit number is squared. When this 2-digit number is reversed and squared, the difference between the squares is also a square. What is the 2-digit number?
Particularly General
Stage: 5 Challenge Level:
By proving these particular identities, prove the existence of general cases.
