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When we have to work out lots of repeated additions of the same amount, it is much easier to multiply.

 

Example

 

A dog has 4 legs.

How many legs will 12 dogs have?

 

 

 

Answer

We need to work out  12 lots of 4,

which is quicker than adding 4 + 4 + 4 + 4 + 4 + ... etc. twelve times.

 

This is   12 × 4.

12 × 4 = 48

 

12 dogs will have 48 legs.

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