# Multiplication (tables): 5x: starfish

## The Lesson

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In this exciting lesson, you will need to solve a range of multiplying-by-5 word problems that feature a variety of marine invertebrates, including starfish and brittlestars. Try using PAWS to arrive at the right answer!

=  Picture the problem in your mind.

=  Annotate the word problem by highlighting the important information.

W =  Write down the number sentence that needs to be solved.

S  =  Solve the number sentence using an efficient strategy.

Useful prior knowledge:

• To confidently count in multiples of 5 using a variety of pictorial representations to assist.

Did you know?

Starfish are mainly carnivorous (meat-eating) creatures. They will hunt slow-moving prey such as mussels, oysters and clams. However, they are also scavengers and will feed on animals that have died and sunk to the sea floor.

## Use Paws and the multiples-of-5 bar to solve the word problem.

Two starfish were using their tube-like feet to move slowly across the seabed in search of food, when they found a patch of tasty mussels. After a short while, they were joined by four more hungry starfish.

If each starfish had five arms, how many arms would you be able to count in total on this patch of mussels?