Powers and roots

What you'll learn

1. 1

   Imagine a square of chocolate 🍫 that has 4 rows and 4 columns. That's 4 × 4 = 16 pieces.

2. 2

   What does 3 squared mean? (3 with a tiny 2)

3. 3

   Build 5 squared (5 × 5) using an array. How many dots in total?

4. 4

   Let's work out 2 to the power of 3 (2³).

5. 5

   What is 3³? (3 × 3 × 3)

6. 6

   Now try a square root. The square root of 16 is the number that multiplies by itself to make 16.

7. 7

   What is the square root of 25? (Which number × itself = 25?)