Here are three sets of 10.
How many sets of 5 are there?
Five times
There are two sets of 5 in each 10 so
there must be six sets.
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
3030
Five times
So what is 8 x 5 ?
Five times
4040
Five times
2 x 10 = 4 x 5
3 x 10 = 6 x 5
4 x 10 = 8 x 5
5 x 10 = 10 x 5
There is a pattern in the answers we have found. What
do you notice?
Five times
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
I can see doubling
and halving.
I can see doubling
and halving.
2 x 10 = 4 x 5
3 x 10 = 6 x 5
4 x 10 = 8 x 5
5 x 10 = 10 x 5
Give me an example.
Five times
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
4 is doubled to get 8.
10 is halved to get 5.
4 is doubled to get 8.
10 is halved to get 5.
2 x 10 = 4 x 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
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
It should be3½ x 10 = 7 x
5
It should be3½ x 10 = 7 x
5
2 x 10 = 4 x 5
3 x 10 = 6 x 5
4 x 10 = 8 x 5
5 x 10 = 10 x 5
So what is 7 x 5?
Five times
3½ x 10 = 7 x 5
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
3½ x 10 = 7 x 5
3535