How many sets of 5 are there?

Presentation on theme: "How many sets of 5 are there?"— Presentation transcript:

How many sets of 5 are there?
Five times Here are three sets of 10. How many sets of 5 are there?

There are two sets of 5 in each 10 so there must be six sets.
Five times There are two sets of 5 in each 10 so there must be six sets.

Five times So what is 6 x 5 ?

Five times 30

Five times So what is 8 x 5 ?

Five times 40

There is a pattern in the answers we have found. What do you notice?
Five times There is a pattern in the answers we have found. What do you notice? 2 x 10 = 4 x 5 3 x 10 = 6 x 5 4 x 10 = 8 x 5 5 x 10 = 10 x 5

I can see doubling and halving.
Five times 2 x 10 = 4 x 5 3 x 10 = 6 x 5 I can see doubling and halving. 4 x 10 = 8 x 5 5 x 10 = 10 x 5

Five times Give me an example. 2 x 10 = 4 x 5 3 x 10 = 6 x 5 4 x 10 = 8 x 5 5 x 10 = 10 x 5

Five times 2 x 10 = 4 x 5 4 is doubled to get 8. 10 is halved to get 5. 3 x 10 = 6 x 5 4 x 10 = 8 x 5 5 x 10 = 10 x 5

What should go on this card?
Five times What should go on this card? 2 x 10 = 4 x 5 3 x 10 = 6 x 5 4 x 10 = 8 x 5 5 x 10 = 10 x 5

Five times 2 x 10 = 4 x 5 3 x 10 = 6 x 5 It should be 3½ x 10 = 7 x 5 4 x 10 = 8 x 5 5 x 10 = 10 x 5

Five times So what is 7 x 5? 2 x 10 = 4 x 5 3 x 10 = 6 x 5 3½ x 10 = 7 x 5 4 x 10 = 8 x 5 5 x 10 = 10 x 5

Five times 2 x 10 = 4 x 5 3 x 10 = 6 x 5 35 3½ x 10 = 7 x 5 4 x 10 = 8 x 5 5 x 10 = 10 x 5