Multiplication (tables): 5x: starfish

1 - Learning Objective

Learning Objective

We are learning how to multiply by 5.

Context: starfish

Credit: BBC One - The Blue Planet

Clip Description

There are over 2,000 different species of starfish (sea stars) living in the world’s oceans. Without a brain or blood, these unique marine animals come in all different sizes, shapes and colours. Whilst most sport five arms around a disc-shaped body, some can have up to fifty arms!

In this fascinating clip, two harlequin shrimps must work together to get a five-armed starfish onto its back if they are to secure a meal. This proves tricky as once one arm is prized off the seabed, another arm quickly reattaches itself. Will teamwork and perseverance result in a tasty meal? Watch the clip to find out.

Quick Number Challenge

How many different numbers can you make that use 5 fives? 

(You can add, subtract, multiply or divide these numbers.)

e.g. 5 + 5 + 5 + 5 + 5 = 25   

       5 + 5 + 5 + 5 – 5 = 15