"How many more" word problems and the concept of difference (2nd grade math)

Difference in Math | Overview, Subtraction & Examples

Common Difference | Definition, Formula & Examples

Answered: Use a direct proof to show that every odd integer is a difference of two squares. (For example: 1 = 12 – 02 and 5 = 32 – 22, and so on.) | bartleby

The Difference of the Squares of Two Natural Numbers is 45. the Square of the Smaller Number is Four Times the Larger Number. Find the Numbers. - Mathematics | Shaalaa.com

Sum of Squares - Definition, Formula, Proof and Examples