数学テスト

Numbers 1-12 squared

52=?

Square numbers

A square number is a number multiplied by itself. The symbol is 2 (we call it exponent). The number squared is called the base:

$$2^2= 2 × 2 = 4$$
$$3^2 = 3 × 3 = 9$$
$$4^2 = 4 × 4 = 16$$

We can read this as two/three/four to the second power.

A cube number is a number multiplied by itself 3 times:

$$2^3 = 2 × 2 × 2 = 8$$
$$3^3 = 3 × 3 × 3 = 27$$

   
   

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