Square of a number

This article is a stub

The square of a number $a$ , denoted as $a^2$ , is this number multiplied by itself:
$a^{2}=a\times a.$

Practice this concept with exercises

Is the square of an odd number necessarily an odd number ?

Open exerciseDifficulty 3/100 · 1 solution · 1 hint

Problems using this concept (0)

No listed problems link to this concept yet.

Problems using this concept (spoiler) (0)

No listed problems use this concept as a spoiler yet.